Former Australia goalkeeper Mark Bosnich thinks Celtic are taking a "big risk" if they appoint Ange Postecoglou as their new manager.  

After discussions broke down with Eddie Howe, the Scottish Premiership side are still searching for a permanent replacement for Neil Lennon.

Yokohama F. Marinos boss Postecoglou emerged as the front-runner for the vacancy at Parkhead last weekend and The Hoops hope to make an appointment by next week.

"He did have a fantastic time here at a club called Brisbane Roar," ex United stopper Bosnich told Sky Sports News.  "He pretty much revolutionised the way football was played over here. And he's won the title in his first foray into Asia.

"I can understand the angst from Celtic supporters because winning the title here in Australia and winning the title in Japan is not managing in the Scottish Premiership, and nor is it managing a club the size of Celtic, whose worldwide support is right up there, and they're an absolutely massive club.

"I was in England when Arsene Wenger was appointed as Arsenal manager and I'll never forget the back pages where the vast majority of them had the headline of 'Arsene who?' Well we found out since who Arsene Wenger was.

"If he does get appointed, he does deserve a chance, but it is a big risk - there's no doubt about that."