He scored two match-winning goals in an epic A-League major semi-final, but Central Coast Mariners striker Sasho Petrovski reckons he made a goose of himself on Sunday night.

Not because of his remarkable performance during the match, but because of what happened immediately afterwards.

"The after-match interview with Fox Sports, I'm there answering questions and the answers had nothing to do with the questions. I apologise, because I couldn't hear a word - the crowd was so loud," said Petrovski, who has been copping good-natured flak all day about it.

"I reckon I made a goose of myself."

The wall of noise which wrapped around Bluetongue Stadium was in large part created by the 32-year-old striker, who was more a deadly bird of prey than a goose during a memorable match.

His goals in the Mariners' 3-0 extra-time win over Newcastle sent his side's fans into party mode and Central Coast into the A-League grand final - a scenario which looked highly unlikely prior to the game.

Trailing 2-0 after the first leg, the Mariners launched a second leg fightback for the ages, dominating from start to finish and levelling the tie in normal time with Petrovski's first goal.

He then added a second and the Mariners' third in extra-time to win the match, whipping his shirt off in wild celebration.

"Any goal that gets me to rip my shirt off - well that's got to be up there with the best I've scored," Petrovski told AAP.

"We needed a miracle. We got one. Everyone did their role to perfection."

It will be Petrovski's second grand final appearance after he won the title with Sydney FC in season one - beating Central Coast in the final.

Petrovski is confident his current club has the quality as well as fighting spirit to be crowned champions, believing Sunday night's win removed any doubts.

Not only did they overcome the first leg deficit, the Mariners also lost Tom Pondeljak and Alvin Ceccoli to injury inside the first 30 minutes, forcing major changes.

But the Mariners never missed a beat and have stamped themselves firm favourites for the grand final, regardless of whether Newcastle or Queensland Roar emerge from this weekend's preliminary final.

"When we had the forced changes, I was thinking `what's going to happen now?' Petrovski said.

"But they added extra impact, they brought in a bit of a spark.

"Our biggest asset all season has been our depth and even when we've been down to the bare 11 this season, we've battled through, we've defied the odds.

"We definitely proved yesterday nothing can stop us."

Football Federation Australia (FFA) will decide some time this week where the grand final on February 24 will be played.

The FFA is likely to opt for the 46,000-capacity Sydney Football Stadium over the larger Olympic Stadium at Homebush.

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