Two disallowed goals were overturned by video assistance to help Sydney down Perth and make it to the A-League Grand Final.
Sydney FC had two goals denied before they were judged by the video referee.
Graham Arnold insists his Sydney side are technically good enough to play on any surface.
Sydney FC are through to the A-League Grand Final after downing Perth 3-0 in a drama-filled semi at Allianz Stadium.
The PFA is demanding answers after Roar keeper Jamie Young suffered a gruesome injury in their 3-0 ACL defeat away to Muangthong United on Wednesday.
Marco Rojas believes he's playing better football now than he did in his Johnny Warren Medal-winning first A-League stint with Melbourne Victory.