
ASEAN Championship
Malaysia, meanwhile, came from behind to defeat Timor-Leste 3-2 for the first win of their campaign.
Singapore 2-1 Cambodia
Having been idle on Matchday One, Singapore were quick to get into their groove at the National Stadium.
They needed only nine minutes to get on the scoresheet as Faris Ramli was quick to pounce on a mistake by Cambodia goalkeeper Dara Vireak to slot the ball home.
Shawal Anuar doubled their lead seven minutes later, capitalising on another mistake from Vireak.
Cambodia, who played to a 2-2 draw with Malaysia on Sunday, steadied themselves and pulled one back through Sieng Chanthea in the 59th minute but Singapore held on for the points.
Malaysia 3-2 Timor-Leste
Malaysia, needing a win after their opening day draw with Cambodia, took the lead in the 37th minute through Syafiq Ahmad.
Timor-Leste, however, were a much different side from the on that was beaten 10-0 by Thailand and drew level through Olagar Xavier in the first minute of time added on in the first half.
It got better for them two minutes later, with Joao Pedro putting them ahead, much to the shock of the Malaysian fans.
Malaysia pushed forward after the break but had to wait till the 70th minute for the equaliser, with Timor-Leste custodian Mendonca da Silva failing to deal with Paulo Josue's shot.
Josue then completed the turnaround when he nodded home a cross in the 83rd minute.
Malaysia play Thailand on Saturday while Group B action on Thursday will see Philippines meeting Myanmar while Indonesia will host Laos.