Sailors got off to a fine start, taking the lead after just 41 seconds when Lionel Tan’s long throw bounced kindly inside the box for Song, who buried the ball in the roof of the net.

Port tried to get a grip on the game but efforts from Bordin Phala, Lonsana Doumbouya and Felipe Amorim failed to trouble Sailors’ custodian Izwan Mahbud.

The home side came close to doubling their lead in the 25th minute when Maxime Lestienne strode down the right flank before making his way into the box, only to send a tame effort into the arms of Port keeper Chanin Sae-ear.

The visitors played in patches with Doumbouya failing to get his header on target of a corner in the 34th minute, before Suphanan Bureerat’s inviting cross into the box for Worachit Kanitsribampen was intercepted by Izwan.

Sailors extended their lead two minutes later, Song beautifully volleying home Lestienne’s well-timed lob.

The onus was on Port to find a way back and they narrowed the deficit five minutes into the restart when a lapse in concentration in the Sailors ranks led to substitute Teerasak Poeiphimai setting up Amorim to finish with a powerful drive past Izwan.

A rattled Sailors conceded again two minutes later with Poeiphimai in the thick of action when he laid the ball for Frans Putros to finish off a well orchestrated team move.

The Singaporean side, to their credit, regrouped and regained the lead in the 67th minute with Lestienne crossing the ball to Song, whose acrobatic effort left Chanin stunned.

A Port mistake in the 71st minute led to Sergio Carmona releasing Shawal Anuar with the midfielder beating his markers and a challenge by Chanin before slotting home with Lennart Thy adding their fifth deep into time added on to complete the emphatic win.