The term World Series of Soccer was initially a series of senior international soccer matches held by USSF between 1991 and 1994.

In 2005, Major League Soccer re-introduced the name for a series of professional matches in the United States.

U.S. roster

National Team player pool for the 1991 World Series of Soccer:

No.	Pos.	Player	Date of birth (age)	Caps	Club
1	1GK	Tony Meola	21 February 1969	100	Fort Lauderdale Strikers
18	1GK	Mark Dodd	14 September 1965	15	Colorado Foxes
21	2DF	Fernando Clavijo	23 January 1956	61	St. Louis Storm
3	2DF	John Doyle	16 April 1966	53	Örgryte IS
15	2DF	Desmond Armstrong	2 November 1964	81	Santos FC
2	2DF	Steve Trittschuh	24 April 1965	38	Sparta Prague
	2DF	Janusz Michallik	22 April 1966	44	Gremio Lusitano
	2DF	Bruce Savage	21 December 1960	16	Baltimore Blast
22	2DF	Alexi Lalas	1 June 1970	96	Rutgers University
	2DF	Robin Fraser	17 December 1966	27	Colorado Foxes
	2DF	Troy Dayak	21 January 1971	9	San Francisco Bay Blackhawks
17	2DF	Marcelo Balboa	8 August 1967	128	San Francisco Bay Blackhawks
	2DF	Jimmy Banks	2 September 1964	36	Milwaukee Wave
12	2DF	Jeff Agoos	2 May 1968	134	University of Virginia
	2DF	Troy Snyder	24 November 1965	5	Dallas Sidekicks
12	3MF	Paul Krumpe	4 March 1963	25	Colorado Foxes
9/14/16	3MF	Brian Quinn	24 May 1960	48	San Diego Sockers
9	3MF	Tab Ramos	21 September 1966	81	Figueres
6	3MF	John Harkes	8 March 1967	90	Sheffield Wednesday
19	3MF	Chris Henderson	11 December 1970	79	UCLA
8	3MF	Dominic Kinnear	26 July 1967	56	San Francisco Bay Blackhawks
7	3MF	Hugo Perez	8 November 1963	73	Örgryte IS
20	3MF	Paul Caligiuri	9 May 1964	110	Hansa Rostock
8	3MF	Henry Gutierrez	28 August 1968	1	Stade Rennais F.C.
	4FW	Steve Rammel	20 April 1968	0	Rutgers University
10	4FW	Peter Vermes	21 November 1966	67	Tampa Bay Rowdies
11	4FW	Eric Wynalda	9 June 1969	107	San Francisco Bay Blackhawks
4	4FW	Bruce Murray	25 January 1966	86	Maryland Bays
14	4FW	Frank Klopas	1 September 1966	39	AEK Athens
7/9	4FW	Dante Washington	21 November 1970	6	Radford University

1991

In 1991, the United States Soccer Federation (USSF), established and promoted a series of national team games between the United States men's national soccer team and other national soccer teams. The goal was to provide U.S. soccer players on the national team an opportunity to play high level competitive soccer. The collapse of the North American Soccer League had removed the ability of U.S. players getting meaningful outdoor experience. While indoor soccer was booming, USSF didn't see it as an adequate replacement for outdoor competition when it came to preparing players for international outdoor soccer.

1992

1993

In 1993, USSF resurrected the World Series of Soccer to prepare the national team for the 1994 FIFA World Cup. As the host nation, the U.S. did not need to qualify. Therefore, USSF sought other games to provide the team with competitive experience.

1994

In 1994, the U.S. national team played three matches in Ohio, billed by USSF as part of the World Series of Soccer: