These are the squads for the countries that played in the 1921 South American Championship. The participating countries were Argentina, Brazil, Chile and Uruguay. The teams plays in a single round-robin tournament, earning two points for a win, one point for a draw, and zero points for a loss. ^{[1] [2]}

Argentina

Head Coach: n/i ^{[note 1]}

No.	Pos.	Player	Date of birth (age)	Caps	Goals	Club
—	2 DF	Florindo Bearzotti		0	0	Belgrano (Rosario)
—	4 FW	Pedro Calomino	(1892-03-13)13 March 1892 (aged 28)	0	0	Boca Juniors
—	2 DF	Adolfo Celli		0	0	Newell's Old Boys
—	4 FW	Jaime Chavín		0	0	Huracán
—	3 MF	Miguel Dellavalle		0	0	Belgrano (C)
—	4 FW	Raúl Echeverría		0	0	Estudiantes (LP)
—	3 MF	Alfredo Elli		0	0	Boca Juniors
—	4 FW	Vicente González		0	0	Gimnasia y Esgrima (Mza)
—	4 FW	Julio Libonatti		0	0	Newell's Old Boys
—	3 MF	José Alfredo López		0	0	Boca Juniors
—	1 GK	Ernesto Kiesel		0	0	Huracán
—	2 DF	Juan Salvador Geronimo Presta		0	0	Porteño
—	4 FW	Blas Saruppo		0	0	Newell's Old Boys
—	3 MF	Emilio Solari		0	0	Nueva Chicago
—	3 MF	Gabino Sosa		0	0	Central Córdoba (R)
—	1 GK	Américo Tesoriere		0	0	Boca Juniors

Brazil

Head coach: Ferreira Vianna Netto

No.	Pos.	Player	Date of birth (age)	Caps	Goals	Club
—	4 FW	Alfredinho		0	0	Botafogo
—	2 DF	Barata		0	0	America
—	4 FW	Candiota		0	0	Flamengo
—	2 DF	Caratório		0	0	Andaraí
—	1 GK	Carnaval		0	0	São Cristóvão
—	3 MF	Dino		0	0	Flamengo
—	4 FW	Fréderico		0	0	Bangu
—	1 GK	Kuntz	(1897-09-03)3 September 1897 (aged 25)	0	0	Flamengo
—	3 MF	Laís		0	0	Fluminense
—	4 FW	Machado		0	0	Fluminense
—	3 MF	Maxambomba		0	0	Coritiba
—	4 FW	Nono		0	0	Flamengo
—	4 FW	Paulo Sampaio Vianna		0	0	Fluminense
—	3 MF	Pena		0	0	Coritiba
—	4 FW	Orlandinho		0	0	Flamengo
—	2 DF	Telefone		0	0	Flamengo
—	4 FW	Zezé		0	0	Fluminense

Paraguay

Head Coach: José Durand Laguna

No.	Pos.	Player	Date of birth (age)	Caps	Goals	Club
—	1 GK	Manuel Radice [ pl]		0	0
—	1 GK	Ángel Portaluppi [ pl]	(1898-04-14)14 April 1898 (aged 23)	0	0
—	2 DF	Ramón González [ pl]		0	0
—	2 DF	Venancio Paredes [ pl]		0	0
—	3 MF	Isidoro Benítez Casco [ pl]		0	0
—	3 MF	Manuel Fleitas Solich	(1900-12-30)30 December 1900 (aged 20)	0	0	Nacional
—	3 MF	Arsenio Rodríguez [ pl]		0	0
—	4 FW	Alejandro Delgado [ pl]		0	0
—	4 FW	Darío Lima [ pl]		0	0
—	4 FW	Ildefonso López [ pl]		0	0
—	4 FW	Gerardo Rivas [ pl]		0	0	Libertad
—	4 FW	Daniel Schaerer [ pl]		0	0
—	4 FW	Francisco Vera [ pl]		0	0
—	4 FW	Agustín Zelada [ pl]		0	0

Uruguay

Head Coach: Ernesto Fígoli

No.	Pos.	Player	Date of birth (age)	Caps	Goals	Club
—	1 GK	Manuel Beloutas		0	0	Universal
—	2 DF	José Pedro Benincasa		0	0	Peñarol
—	3 MF	Oscar Bianchi		0	0	Charley [ es]
—	3 MF	Fausto Broncini		0	0	Central
—	4 FW	Antonio Campolo		0	0	Peñarol
—	4 FW	Norberto Casanello		0	0	Wanderers
—	1 GK	Pedro Casella		0	0	Belgrano
—	2 DF	Alfredo Foglino		0	0	Nacional
—	2 DF	Marcelo Lietti		0	0	Universal
—	3 MF	Sebastián Marroche		0	0	Nacional
—	2 DF	Juan Molinari		0	0	Universal
—	4 FW	Ladislao Pérez		0	0	Universal
—	4 FW	José Piendibene		0	0	Peñarol
—	4 FW	Ángel Romano		0	0	Nacional
—	2 DF	Esteban Ruibal		0	0	Central
—	4 FW	Pascual Somma		0	0	Nacional
—	3 MF	Luis Villazú		0	0	Lito [ es]
—	3 MF	Alfredo Zibechi		0	0	Nacional

Notes

References