Home United set up a semifinal meeting with holders Albirex Niigata (S) in the Singapore Cup after accounting for Brunei DPMM in the quarterfinals.
Coach Ong Kim Swee says converting chances must be Malaysia's priority when they take on Singapore in the Southeast Asian Games on Wednesday night.
Malaysia scored two quickfire goals in the second half to come from behind to beat Singapore 2-1 in a Group A SEA Games match at Shah Alam Stadium.
Home United bounced back from a midweek AFC Cup defeat to Ceres-Negros with a 3-1 comeback victory over Brunei DPMM in the Singapore Cup QF on Sunday.
Hougang United are on the cusp of a place in the last four of the Singapore Cup after a 4-1 win over Cambodia's Nagaworld in a first-leg quarterfinal.
The Singapore Cup is "finished" for Tampines Rovers, who will now aim to win their first S.League title in four years, says coach Jurgen Raab.