Malas is taking more of a hands-on role for the game as coach Luke Eroi has some personal matters to attend to in his native Solomon Islands.
Malas' task has been made more difficult as he is without Seimata Chilia, who left for former club Tupuji Imere earlier this month, and Solomon Islands internationals Jack Wetney and Joe Luwi.
They do have the services of former Auckland City player Alick Maemae however and will be looking to the skillful midfielder to challenge the always well-organised City defence.
The home team will also be wary of Fenedy Masauvakalo who scored Amicale's solitary goal in last season's two-leg final. He also claimed the O-League's golden boot.
This catch-up game completes the third round after being delayed through City's involvement in the Fifa tournament in Japan. It was very much a return to business as usual for City on Saturday as they maintained their season-long unbeaten record with a 3-0 win over Canterbury United - and a season-long goal count of 29-5.
Tribulietx was pleased with his team's return after the Christmas break but made it clear he is taking it "a game at a time" in what has been, and will continue to be, a busy season.
After the win over Canterbury Tribulietx said they would savour their sixth straight ASB Premiership win before returning to work on Monday to prepare for today's game.
He was pleased to get through that tester largely unscathed and played down the significance of losing key players Andreu Guerao and Ian Hogg.
Andrew Milne picked up a strain against Canterbury but should be fit.
Of Guerao's return to Europe where he has joined Georgian side Dinamo Tblisi,
Tribulietx said he was disappointed to lose a player of his ability.
"He will be a big loss but it was inevitable," said Tribulietx. "Replacing him will not be just a matter of one player but a number of different alternatives in the depth of our squad."
On what they have shown this season, the O-League champions are capable of doing that.
Auckland City v Amicale (Vanuatu)
Kiwitea Street
Today 5.45pm
Referee: Kader Zitouni (Tahiti)