Football at the 1964 Summer Olympics – Men's team squads

 Argentina

Head coach: Ernesto Duchini

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Agustín Cejas	March 22, 1946	18	?	Racing Club
2	DF	Andrés Bertolotti	September 1, 1943	21	?	Chacarita Juniors
3	DF	Otto Sesana	July 16, 1943	21	?	Rosario Central
4	DF	Horacio Morales	June 27, 1943	21	?	Club Atlético Atlanta
5	DF	Miguel Mori	May 17, 1943	21	?	Independiente
6	MF	Roberto Perfumo	October 3, 1942	22	?	Racing Club
7	MF	Ricardo Pérez	August 23, 1944	19	?	Argentinos Juniors
8	MF	José Malleo	January 29, 1944	20	?	Rosario Central
9	FW	Carlos Alberto Bulla	October 6, 1943	21	?	Rosario Central
10	FW	Néstor Manfredi	August 22, 1942	22	?	Rosario Central
11	FW	Héctor Ochoa	July 5, 1942	22	?	Club Atlético Atlanta
12	GK	José Miguel Marín	May 15, 1943	21	?	Vélez Sársfield
13	DF	Juan Carlos Sconfianza	July 13, 1943	21	?	San Lorenzo
14	DF	Emilio Pazos	July 24, 1945	19	?	Club Atlético Atlanta
15	MF	Francisco Brandán	May 8, 1940	24	?	Club Atlético All Boys
16	MF	Antonio Cabrera	October 17, 1943	20	?	Club Atlético Atlanta
17	MF	Juan Risso	September 3, 1942	22	?	Gimnasia y Esgrima La Plata
18	FW	Juan Carlos Domínguez	November 3, 1943	20	?	River Plate
19	FW	Miguel Tojo	July 9, 1943	21	?	Ferro Carril Oeste

 Brazil

Head coach: Vicente Feola

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Florisvaldo	May 9, 1943	21	?	Botafogo
2	DF	Mura	February 4, 1944	20	?	Botafogo
3	DF	Zé Luiz	July 5, 1943	21	?	Fluminense
4	DF	Valdez	February 10, 1943	21	?	Fluminense
5	DF	Adevaldo	August 16, 1943	21	?	Botafogo
6	MF	Íris	February 12, 1942	22	?	Fluminense
7	MF	Roberto Miranda	July 31, 1944	20	?	Botafogo
8	FW	Zé Roberto	May 31, 1945	19	?	São Paulo
9	FW	Aladim	May 15, 1937	27	?	Bangu
10	MF	Ivo Soares	December 16, 1938	25	?	Flamengo
11	FW	Caravetti	February 4, 1945	19	?	Palmeiras
12	GK	Hélio Dias	December 19, 1943	20	?	Botafogo
13	DF	Riva	May 4, 1944	20	?	Fluminense
14	DF	Dimas	May 13, 1944	20	?	Botafogo
16	FW	Humberto	June 20, 1945	19	?	Botafogo
17	FW	Mattar	November 24, 1944	19	?	Comercial
18	FW	Tito	March 15, 1943	21	?	Fluminense
19	MF	Elizeu	October 17, 1945	19	?	Santos
20	FW	Othon	December 18, 1943	20	?	Botafogo
21	FW	Nélio	December 8, 1943	20	?	Fluminense

 Czechoslovakia

Head coach: Rudolf Vytlačil

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	František Schmucker	January 28, 1940	24	?	Rudá Hvězda Brno
2	DF	Anton Urban	January 16, 1934	30	?	ŠK Slovan Bratislava
3	DF	Vladimír Weiss	September 21, 1939	25	?	FK Inter Bratislava
4	DF	Zdeněk Pičman	January 23, 1933	21	?	Spartak Hradec Králové
5	FW	Josef Vojta	April 19, 1935	19	?	Sparta Prague
6	MF	Ján Geleta	September 13, 1943	21	?	Dukla Prague
7	FW	Ľudovít Cvetler	September 17, 1938	26	?	ŠK Slovan Bratislava
8	FW	Ivan Mráz	May 24, 1941	23	?	Sparta Prague
9	FW	Karel Lichtnégl	August 30, 1936	28	?	Spartak ZJŠ Brno
10	FW	Vojtech Masný	July 8, 1938	26	?	Jednota Trenčín
11	FW	František Valošek	July 12, 1937	27	?	FC Baník Ostrava
12	MF	Karel Knesl	April 8, 1942	22	?	Dukla Prague
13	DF	Štefan Matlák	February 6, 1934	20	?	ŠK Slovan Bratislava
14	MF	Karel Nepomucký	July 20, 1939	25	?	SK Slavia Prague
15	MF	František Knebort	January 19, 1944	20	?	Bohemians ČKD Praha
16	FW	Jan Brumovský	June 26, 1937	27	?	Dukla Prague
21	GK	Anton Švajlen	December 3, 1937	27	?	VSS Košice

 Germany

Head coach: Károly Sós

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Jürgen Heinsch	July 4, 1940	24	?	F.C. Hansa Rostock
2	DF	Klaus Urbanczyk	June 4, 1940	24	?	Hallescher FC
3	DF	Manfred Walter	July 31, 1937	27	?	BSG Chemie Leipzig
4	DF	Manfred Geisler	March 3, 1941	23	?	Lokomotive Leipzig
5	MF	Klaus-Dieter Seehaus	October 6, 1942	22	?	F.C. Hansa Rostock
6	MF	Werner Unger	May 4, 1931	33	?	ASK Vorwärts Berlin
7	MF	Herbert Pankau	October 4, 1941	23	?	F.C. Hansa Rostock
8	DF	Peter Rock	December 16, 1941	22	?	FC Carl Zeiss Jena
9	MF	Gerhard Körner	September 20, 1941	23	?	ASK Vorwärts Berlin
10	FW	Wolfgang Barthels	November 23, 1940	23	?	F.C. Hansa Rostock
11	MF	Dieter Engelhardt	August 18, 1938	26	?	Lokomotive Leipzig
12	FW	Gerd Backhaus	September 8, 1942	22	?	Lok Stendal
13	FW	Bernd Bauchspieß	October 10, 1939	25	?	BSG Chemie Leipzig
14	FW	Henning Frenzel	May 3, 1942	22	?	Lokomotive Leipzig
15	DF	Otto Fräßdorf	February 3, 1942	22	?	ASK Vorwärts Berlin
16	MF	Jürgen Nöldner	February 22, 1941	23	?	ASK Vorwärts Berlin
17	MF	Klaus Lisiewicz	February 2, 1943	21	?	BSG Chemie Leipzig
18	FW	Eberhard Vogel	April 8, 1943	21	?	FC Karl-Marx-Stadt
19	FW	Hermann Stöcker	January 6, 1938	26	?	1. FC Magdeburg
20	GK	Horst Weigang	September 20, 1940	24	?	Lokomotive Leipzig

 United Arab Republic

Head coach: Josef Vandler

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Ali Khorshid	December 11, 1937	26	?	Ghazl El Mahalla SC
2	GK	Ahmed Redha	November 9, 1939	24	?	El Ittihad Alexandria
3		Moustafa Riyad	April 5, 1941	23	?	Tersana SC
4	FW	Nabil Nosair	October 11, 1938	26	?	Zamalek SC
5		Mohammed Seddiq	April 14, 1940	24	?	Ismaily
6		Mohammed Shahin	March 2, 1942	22	?	Al-Masry SC
7		Amin El-Esnawi	June 23, 1936	27	?	Al-Ittihad Suez
8		Ahmed Mostafa	March 8, 1940	24	?	Zamalek SC
9		Mimi Darwish	March 20, 1942	22	?	Ismaily
10		Zaki Hussein	September 12, 1934	30	?	Zamalek SC
11		Raafat Attia	February 6, 1934	30	?	Zamalek SC
12		Rifaat El-Fanagily	May 1, 1936	28	?	Al-Ahly
13		Mahmoud Hassan	November 19, 1943	20	?	Tersana SC
14		Farouk El-Sayed	October 18, 1944	19	?	El-Olympi
15		Mimi El-Sherbini	July 26, 1937	26	?	Al-Ahly
16		Taha Ismail	February 8, 1939	25	?	Al-Ahly
17		Samir Qotb	March 16, 1938	26	?	Zamalek SC
18		Kamal Etman	June 6, 1941	23	?	Al-Sekka Al-Hadid
19		Badawi Abdel Fattah	May 24, 1935	29	?	Al-Masry SC
20		El-Sayed El-Tabbakh	November 3, 1940	23	?	Al-Qanat SC

 Ghana

Head coach: Charles Gyamfi

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Edward Dodoo Ankrah	March 8, 1934	30	?	Real Republicans
2	DF	Sam Acquah			?	Eleven Wise
3	DF	Emmanuel Oblitey			?	Real Republicans
4	DF	Ben Acheampong	February 2, 1939	25	?	Asante Kotoko SC
5	DF	Charles Addo Odametey	February 23, 1937	27	?	Accra Hearts of Oak SC
6	MF	Emmanuel Kwesi Nkansah	October 15, 1941	22	?
7	MF	Osei Kofi			?	Asante Kotoko SC
8	MF	Wilberforce Mfum			?	Asante Kotoko SC
9	FW	Edward Aggrey-Fynn			?	Accra Hearts of Oak SC
10	FW	Edward Acquah			?	Eleven Wise
11	MF	Kofi Paré	November 28, 1938	25	?	Real Republicans
12	DF	Abdul Ramonu Gibirine	August 14, 1940	24	?
13	GK	Addoquaye Laryea			?	Accra Hearts of Oak SC
14	MF	Kwame Atta	November 22, 1935	28	?	Brong Ahafo United
15	FW	Gladstone Ofori	October 8, 1943	21	?	Real Republicans
16	DF	Samuel Anum Okai	June 6, 1936	28	?
17	FW	Gyau Agyemang	June 3, 1939	25	?	Real Republicans
18	FW	Muhamad Salisu			?	Asante Kotoko SC
19	GK	Kofi Anoi	September 21, 1942	22	?
20	FW	Frank Odoi	February 23, 1943	21	?	Great Olympics	1	0	90	-	-	-
21	FW	Joseph Adjei	November 3, 1935	28	?	Asante Kotoko SC

 Hungary

Head coach: Lajos Baroti

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Antal Szentmihályi	June 13, 1939	25	?	Vasas SC
2		Tibor Csernai	December 3, 1938	25	?
3	DF	Dezső Novák	February 3, 1939	25	?	Ferencvárosi TC
4	DF	Benő Káposzta	December 7, 1942	22	?
5		Árpád Orbán	March 14, 1938	26	?	Győri ETO FC
6	DF	Kálmán Ihász	March 6, 1941	23	?	Vasas SC
7	DF	Gusztáv Szepesi	July 17, 1939	25	?
8		Károly Palotai	September 11, 1935	29	?
9	MF	István Nagy	April 14, 1939	25	?	MTK Hungária FC
10		Gyorgy Nagy	July 30, 1942	22	?
11	FW	Imre Komora	June 5, 1940	24	?	Budapest Honvéd
12	FW	Zoltán Varga	January 1, 1945	19	?	Ferencvárosi TC
13	FW	Ferenc Bene	December 17, 1944	19	?	Újpesti Dózsa
14	FW	Antal Dunai	March 21, 1943	21	?	Pécsi Dózsa
15	FW	János Farkas	March 27, 1942	22	?	Vasas SC
16		Sándor Katona	February 21, 1943	21	?
17		Pal Orosz	January 25, 1934	30	?
18		Ferenc Nógrádi	November 15, 1940	23	?
19	GK	József Gelei	June 29, 1938	26	?	Tatabánya

 Iran

Head coach: Hossein Fekri

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Aziz Asli	April 4, 1937	27	?	Daraei F.C.
2		Mansour Amir-Asefi	July 19, 1933	21	?	Kian F.C.
3		Ali Mirzaei	October 9, 1942	22	?
4	DF	Mostafa Arab	August 13, 1941	23	?	Oghab F.C.
5		Hassan Habibi	February 7, 1939	25	?	Taj SC
6		Ebrahim Latifi	January 27, 1939	25	?	Shahin
7		Abdollah Saedi	August 24, 1942	22	?
8		Kambozia Jamali	July 9, 1938	26	?	Taj SC
9	MF	Jalal Talebi	March 23, 1942	22	?
10		Gholam Hossein Nourian	March 16, 1935	29	?	Daraei F.C.
11		Mohammad Hossein Khodaparast	May 27, 1938	26	?
12		Karam Nayyerloo	March 19, 1943	21	?	Taj SC
13		Gholam Hossein Fanaei	May 14, 1942	22	?
14		Fariborz Esmaeili	July 1, 1940	24	?	Taj SC
15		Dariush Mostafavi	September 8, 1944	20	?	Taj SC
16	MF	Parviz Ghelichkhani	December 4, 1945	18	?	Kian F.C.
17	GK	Mohammad Bayati	May 5, 1932	32	?	Taj SC

 Japan

Head coach: Dettmar Cramer

#	Pos.	Player	Date of Birth	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Tsukasa Hosaka	March 3, 1937	27	?
2	DF	Hiroshi Katayama	May 28, 1940	24	?	Mitsubishi Heavy Industry
3	DF	Masakatsu Miyamoto	July 4, 1938	26	?	Furukawa Electric
4	DF	Ryuzo Hiraki	October 7, 1931	33	?	Furukawa Electric
5	DF	Yoshitada Yamaguchi	September 28, 1944	20	?	Chuo University
6	MF	Ryozo Suzuki	September 20, 1939	25	?	Hitachi
7	DF	Hisao Kami	June 28, 1941	23	?	Yawata Steel
8	DF	Mitsuo Kamata	December 16, 1937	26	?
9	DF	Kiyoshi Tomizawa	December 3, 1943	20	?
10	MF	Aritatsu Ogi	December 10, 1942	21	?	Chuo University
11	MF	Takaji Mori	November 24, 1943	20	?	Waseda University
12	MF	Saburo Kawabuchi	December 3, 1936	26	?	Furukawa Electric
13	FW	Shigeo Yaegashi	March 24, 1933	31	?	Furukawa Electric
14	FW	Masashi Watanabe	January 11, 1936	28	?	Yawata Steel
15	FW	Kunishige Kamamoto	April 15, 1944	20	?	Waseda University
16	MF	Teruki Miyamoto	December 26, 1940	23	?	Yawata Steel
17	MF	Shozo Tsugitani	June 25, 1940	24	?
18	FW	Ryuichi Sugiyama	July 4, 1941	23	?	Meiji University
21	GK	Kenzo Yokoyama	January 21, 1943	21	?	Rikkyo University

 South Korea

Head coach: Chung Kook-Chin

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Ham Heung-Chul	November 17, 1930	33	?	Daehan Tungsten	3
2	DF	Kim Jung-Suk	October 1, 1939	25	?	Korea University	3
3	DF	Kim Hong-Bok	March 4, 1935	29	?	Cheil Industries	3					2
4	MF	Kim Sam-Rak	June 19, 1940	24	?	Yonsei University	2
5	FW	Cha Tae-Sung	October 8, 1934	30	?	Cheil Industries	3
6	MF	Kim Young-Bai	January 10, 1941	23	?	Korea Electric Power	1
7	FW	Lee Yi-Woo	February 18, 1941	23	?	Cheil Industries	2	1
8	FW	Huh Yoon-Jung	September 30, 1936	28	?	Korea Coal Corporation	3
9	FW	Woo Sang-Gwon	February 2, 1926	38	?	ROK Army Gendarmerie Office	2
10	FW	Cho Yoon-Ok	February 25, 1940	24	?	Daehan Tungsten	3
11	FW	Cho Sung-Dal	December 8, 1935	28	?	Korea Electric Power	2
12	MF	Lee Woo-Bong	June 8, 1935	29	?	Korea Electric Power	1					1
13	DF	Kim Jung-Nam	January 28, 1943	21	?	Korea University	2
14	DF	Park Seung-Ok	January 28, 1938	26	?	Daehan Tungsten	1					1
15	MF	Kim Chan-Ki	December 30, 1932	31	?	Korea Coal Corporation
16	MF	Yoo Kwang-Joon	March 7, 1932	32	?	Korea Coal Corporation
17	FW	Cha Kyung-Bok	January 10, 1938	26	?	ROK Army Gendarmerie Office	1
18	FW	Kim Duk-Joong	April 29, 1940	24	?	Korea Electric Power	1
19	GK	Chung Yeng-Hwan	December 7, 1938	25	?	Korea Electric Power

 Mexico

Head coach: Ignacio Trelles

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Ignacio Calderón	December 13, 1943	20	?	Club Deportivo Guadalajara
2	DF	Carlos Gutiérrez	March 31, 1939	25	?	UNAM
3	DF	Carlos Albert	July 10, 1943	21	?	Necaxa
4	DF	Guillermo Hernández	June 25, 1942	22	?	Atlas
5	DF	Miguel Galván	June 23, 1937	27	?	Necaxa
6	MF	José Luis González	September 14, 1942	22	?	UNAM
7	FW	Felipe Ruvalcaba	February 16, 1941	23	?	Oro
8	FW	Javier Fragoso	April 19, 1942	22	?	América
9	FW	Ernesto Cisneros	October 26, 1940	23	?	Zacatepec
10	FW	Raúl Chávez	March 4, 1939	25	?	Monterrey
11	GK	Alejandro Mollinedo	January 7, 1942	22	?	UNAM
12	DF	Efrain Loza	January 10, 1939	25	?	León
13	MF	Raúl Arellano	January 17, 1939	25	?	Cruz Azul
14	MF	Pablo López	December 4, 1939	24	?	Monarcas Morelia
15	FW	José Luis Aussín	January 20, 1942	22	?	Veracruz
16	MF	Roberto Escalante	June 4, 1940	24	?	Atlante
17	MF	Mario Ayala	August 10, 1942	22	?	América
18	FW	Albino Morales	May 30, 1940	24	?	Toluca

 Morocco

Head coach: Mohamed Massoun

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Allal Ben Kassou	1941		?	FAR Rabat
2	DF	Abdellah Kastaiani	1939		?	FAR Rabat
3	DF	Mustapha Fahim	1938		?	Wydad Casablanca
4	DF	Abdelrazak Nijam	1941		?
5	DF	Amar Bensifdine			?	FAR Rabat
6	DF	Khannoussi Moulay Idriss	June 21, 1944	20	?	MAS Fez
7	MF	Sadni Nafai	1940		?
8	MF	Mohamed Lamari			?	FAR Rabat
9	FW	Albelkader Mohammed	1935		?	FAR Rabat
10	MF	Driss Bamous	December 15, 1942	21	?	FAR Rabat
11	FW	Ali Bendayan	1943		?
12	GK	Ahmed Laghrissi			?	MAS Fez
13	DF	Abdelghani El Mansouri	1942		?
14	MF	Abdelkader Mokhtatif			?	FAR Rabat
15	MF	Mohammed Sahraoui			?	Wydad Casablanca
16	FW	Abdelkader Mourchid	1937		?
17	FW	Mohammed Kenzedine	1939		?
18	FW	Ali Bouachra	September 8, 1940	24	?

 Romania

Head coach: Silviu Ploeşteanu

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Ilie Datcu	July 20, 1937	27	?	FC Dinamo Bucureşti
2	DF	Ilie Greavu	July 19, 1937	27	?	FC Rapid Bucureşti
3	DF	Ion Nunweiller	January 9, 1936	28	?	FC Dinamo Bucureşti
4	DF	Bujor Hălmageanu	February 14, 1941	23	?	FC Steaua Bucureşti
5	MF	Emerich Jenei	March 22, 1937	27	?	FC Steaua Bucureşti
6	DF	Dan Coe	September 8, 1941	23	?	FC Rapid Bucureşti
7	MF	Sorin Avram	March 29, 1943	21	?	FC Steaua Bucureşti
8	FW	Gheorghe Constantin	December 14, 1932	31	?	FC Steaua Bucureşti
9	FW	Ion Ionescu	April 5, 1938	26	?	FC Rapid Bucureşti
10	DF	Constantin Koszka	September 17, 1939	25	?	FC Steaua Bucureşti
11	MF	Carol Creiniceanu	February 1, 1939	25	?	FC Steaua Bucureşti
12	GK	Marin Andrei	October 22, 1940	23	?	FC Rapid Bucureşti
13	MF	Mircea Petescu	May 15, 1943	21	?	FC Steaua Bucureşti
14		Dumitru Ivan	May 14, 1938	26	?	FC Dinamo Bucureşti
15	FW	Emil Petru	September 28, 1939	25	?	FC Dinamo Bucureşti
16	FW	Nicolae Georgescu	January 1, 1936	28	?	FC Rapid Bucureşti
17	FW	Ion Pârcălab	November 5, 1941	22	?	FC Dinamo Bucureşti
18	FW	Emil Dumitriu	November 5, 1942	21	?	FC Rapid Bucureşti
19	FW	Cornel Pavlovici	April 2, 1942	22	?	FC Steaua Bucureşti
20	GK	Stere Adamache	August 17, 1941	23	?	Steagul Roşu Braşov

 Yugoslavia

Head coach: Ljubomir Lovrić

No.	Pos.	Player	DoB	Age	Caps	Club	Tournament games	Tournament goals	Minutes played	Sub off	Sub on	Cards yellow/red
1	GK	Ivan Ćurković	March 15, 1944	20	?	FK Velež Mostar
2	DF	Mirsad Fazlagić	April 4, 1943	21	?	FK Sarajevo
3	DF	Svetozar Vujović	March 3, 1940	24	?	FK Sarajevo
4	MF	Rudolf Belin	November 4, 1942	25	?	NK Dinamo Zagreb
5	DF	Milan Čop	October 5, 1938	25	?	Red Star Belgrade
6	MF	Jovan Miladinović	January 30, 1939	25	?	FK Partizan
7	FW	Spasoje Samardžić	May 20, 1942	22	?	OFK Beograd
8	FW	Slaven Zambata	September 24, 1940	23	?	NK Dinamo Zagreb
9	MF	Ivica Osim	May 6, 1941	23	?	FK Željezničar Sarajevo
10	MF	Lazar Lemić	September 20, 1937	26	?	FK Novi Sad
11	MF	Dragan Džajić	May 30, 1946	22	?	Red Star Belgrade
12	GK	Zlatko Škorić	July 27, 1941	23	?	NK Dinamo Zagreb
13	DF	Živorad Jevtić	December 27, 1943	20	?	Red Star Belgrade
14	DF	Lazar Radović	November 13, 1937	26	?	FK Partizan
15	DF	Marijan Brnčić	July 23, 1940	24	?	NK Rijeka
16	FW	Đorđe Pavlić	August 28, 1938	25	?	FK Vojvodina
17	FW	Josip Pirmajer	February 14, 1944	20	?	FK Partizan
18	MF	Silvester Takač	November 8, 1940	23	?	FK Vojvodina

References

• FIFA
• RSSSF