Socceroo Matt McKay has been a revelation at the Asian Cup but his club coach is confident the in-form midfielder won't be leaving Brisbane Roar in a hurry.Last week, Ange Postecoglou told reporters he would accept it as a coaching compliment if McKay realised a dream to play overseas on a lucrative contract on the back of his superb efforts in Doha.But following the Roar breaking the record for the longest unbeaten streak in the national league on Saturday night with a 2-1 victory over Melbourne Heart on the Gold Coast, Postecoglou indicated he thought McKay might stick around to soak up the club's success.The Roar are certain to be involved in the Asian Champions League next year and Postecoglou believes McKay will be keen to be a part of the action."Even though I said last week we may lose him, I know what Matty's like," the Roar mentor said."He won't go unless it's something extraordinary."I'm still very confident he'll be around next year when we play in Asia and back up from this year."He's been here since day one so he's not going to want to miss being part of something special that hopefully we're building over the next two or three years."McKay played in Australia's heart-breaking 1-0 extra-time loss to Japan in the Asian Cup final - just a few hours after the Roar had extended their unbeaten stretch to a remarkable 23 matches.The Roar keep encountering road blocks to their success but continue to smash through the barriers.On Saturday night they were missing McKay, key defender Luke DeVere - who last week left for South Korean outfit Gyeongnam FC - and injured midfielder Massimo Murdocca (quads), but still found a way to win against a desperate Heart outfit at Skilled Park.Even playing two "home" matches away from Suncorp Stadium, which was damaged during the floods, hasn't fazed the Roar.If the A-League competition was like a poker match, the Roar would be holding three aces and about to collect a fourth when McKay returns home brimming with confidence."He's been great all year," Postecoglou said."He's been missing for a little while and you can forget the impact he can have on the opposition as well as our team."I'm sure he'll come back full of confidence."Again, we've won without him so we'll be giving him that message as well. No one's irreplaceable."