The Prime League was the reserve and youth team soccer league of Singapore's S.League. Teams involved in the league are primarily made up of youth players from the S.League clubs. The Prime League was founded in 1997. S.League clubs are required to participate, and clubs who do not play at S.League level are also eligible to enter. All S.League teams must register a minimum of 15 and a maximum of 20 players for the Prime League. Clubs not participating in the S. League register a minimum of 15 and a maximum of 25 players. The teams must maintain the minimum required number of players throughout the season. Each club is allowed to register 1 foreign player for their Prime League teams. The foreign players must be aged between 18 and 21 at the point of registration and are not eligible to play in the S.League. An S.League player who has played in his club's most recent S.League match is not eligible to play in the club's next Prime League match. Prime League sides also take part in the FA Cup competition. In 2018, the Prime League was scrapped with the National Football League (NFL) installed as the second-tier competition. Past champions Performance by Clubs See also Singapore Premier League Singapore Cup Singapore League Cup Singapore FA Cup Singapore Community Shield List of football clubs in Singapore References External links Prime League overview at S.League website R Football leagues in Singapore 1997 establishments in Singapore 2017 disestablishments in Singapore