Warriors FC

1975–2006

The Singapore Armed Forces Sports Association (SAFSA) football team was formed in 1975 to provide talented footballers serving National Service with opportunities to play competitive football. That year, they won the President's Cup, a feat that they repeated in 1978, when they also captured the National Football League title to complete double. Their Under-19 team won the national Under-19 title in 1979, 1980 and 1983, while the 1981 season of the National Football League saw the SAFSA emerge as unbeaten champions. The President's Cup was won by them again in 1984 and 1986, the latter time as part of a second double, as they also won the National Football League on goal difference. In 1990, the Pools Cup went to the SAFSA and their convincing displays led to their selection as one of eight clubs to compete in the newly formed S.League.

Singapore Armed Forces FC's entry into the S.League in 1996 also resulted in the withdrawal of SAFSA from the National Football League. SAFSA would not participate in Singaporean football leagues again until 1999, when they rejoined the league.

SAFFC finished second in 1996 and 1999 and won the league in 1997 and 1998.

Former Singapore international Fandi Ahmad took over from Mladen Pralija in 1999.

Three coaches were at the reins during this period, each lasting only one season. SAFFC finished second in 2005 but otherwise outside the top two.

2006–2012

Richard Bok took over as SAFFC's head coach in 2006 and led them to four consecutive championships from 2006 to 2009.

In 2008, SAFFC became the first Singaporean club to achieve a back-to-back domestic double, after winning both the S.League and the Singapore Cup in 2007 and 2008.

AFC Champions League

In 2009, they qualified for the AFC Champions League by defeating Thai champions PEA FC and PSMS Medan of Indonesia in the Eastern zone play-offs, becoming Singapore's first-ever representative at the highest club competition in Asia.

SAFFC were drawn in a group with J.League champions Kashima Antlers, K League champions Suwon Samsung Bluewings and Chinese Super League runners-up Shanghai Shenhua. They lost all of their matches, except for a 1–1 draw against Shanghai Shenhua at home.

In 2010, SAFFC qualified for their second consecutive AFC Champions League by registering a 3–0 home win against Sriwijaya of Indonesia and defeated Muangthong United of Thailand in the Eastern zone play-off final, again at home. Against Henan Jianye of China in the group stage, they drew in the two teams' first encounter and won the return leg 2–1 in Singapore, finishing third in a group that also contained familiar rivals Suwon Samsung Bluewings and former champions Gamba Osaka.

2013–2019

On 20 January 2013, SAFFC announced that they had changed their name to Warriors Football Club ahead of the 2013 S.League season.

Alex Weaver, in his first full season as coach of Warriors FC, clinched the 2014 S.League title on the last day of the competition for the Warriors. With DPMM of Brunei leading the table until the last day, the Warriors scored a 1–0 win over Albirex Niigata Singapore and received a favour from Tampines Rovers, who beat DPMM 2–1 to hand Warriors FC their first title in 5 years and their 9th title in the league's 19-year history.

However, good times did not last for the Warriors. In November 2019, the team were brought to court and charged with 107 counts of not paying salaries for their staff. In total, they failed to pay more than S$350,000 in salaries to about 30 employees, including players, coaches and supporting staff.

2 days after the incident was reported, ST reported that there were 2 parties that were interested to take over Warriors FC.

On 31 December 2019, the FAS had instructed the Warriors to sit out the 2020 Singapore Premier League season due to their financial and legal issues. They applied to return to the Singapore Premier League and Singapore Cup competitions for 2021 to no avail.