Sydney FC's high-stakes encounter at Allianz Stadium on Sunday has taken on a whole new significance with Alessandro Del Piero admitting it could be his last home game for the club.

After 26 matches it all comes down to the final game of the final round for the Sky Blues, who face Perth Glory with a victory securing a spot in the play-offs.

It will be Perth skipper Jacob Burns's last A-League game before he hangs up his boots while the Sky Blues will pay tribute to midfielder and former captain Terry McFlynn who is also retiring at the conclusion of this campaign.

Del Piero's future at Sydney remains in limbo, with suggestions the board are unlikely to offer him a contract for next season. The Italian, who turns 40 in November, said he was still in discussions with the club but conceded Sunday may be the last time he plays at Allianz Stadium.

"It could be honestly at the moment," he said on Thursday. "We have already had a chat with the owners and with [chairman] Scott [Barlow] and we are ready to talk at the end of the season. We will do the best thing for everyone, but I don't think about that at the moment.

"Sunday will be a great game because there are many different things around this game but we just enjoy Burns' retirement, McFlynn's retirement and hopefully a win."

With Perth desperately hoping to avoid the wooden spoon Del Piero said he was expecting them to put up a fight.

But it was his personal battle with the famously physical Burns, who is likely to be marking him, that Del Piero said he was especially ready for.

"I've prepared double shin pads, two in the front and two in the back," he joked. "I really enjoy playing against him, it will be an honour to play against him on Sunday, it's been a great career for him."

Should Newcastle lose or draw against Adelaide on Friday Sydney will be assured a top-six spot. Depending on other results however, the Sky Blues could end their season as high as second or as low as seventh.

A top-four finish will not only earn Sydney hosting rights in the finals but will secure coach Frank Farina his job past this season.

Farina insists he's not even thinking about where his side finishes.

"I'm just hoping to win the game Sunday that's about it," he said. "I'm drumming in into the players, we're not talking about anything about finishing second, seventh, sixth. It's about getting a result on Sunday. That's the bottom line."