FORMER Celtic striker Scott McDonald admits to being blown away by the 'wonderful' transformation of the team at Parkhead under Ange Postecoglou's - adding that the manager is creating quite the stir back in Australia.

McDonald, now managing Gold Coast Knights in his homeland, has been impressed as he watched his old team dismantle Rangers in Wednesday night's 3-0 victory from afar.

Postecoglou, a former manager of the Australian national team, has plenty of supporters Down Under and McDonald says they have been bathing in the Greek-Australian's recent success in Scotland.

"It's been an absolute media frenzy over here, social media has just been set alight by the performance last night," McDonald told Sky Sports News.

"There have been a lot of Ange Postecoglou faithful over here going, 'see, I told you so' to all those Celtic fans back home in Scotland wondering who Ange was when he took over.

"Now he's here to stay, he's won the hearts of the Celtic faithful and everyone here is just so proud.

"It's been huge news, obviously there are a lot of football codes over here we have to challenge with but certainly it's been the biggest news to come out of Australian sport today.

"It's fantastic for Scottish football to get the attention that it is out here in Australia.

"It's been a big part of my life and it's huge now, everyone wants to watch it and everyone is just wanting Ange to succeed and create the pathway for the next generation of Australian coaches like myself and others to go and ply their trade over in Europe at some stage."

After suffering a sticky spell at the start of his Celtic tenure when his side lost three of their opening six league fixtures, Postecoglou has overseen an 18-match unbeaten run in the Premiership.

McDonald has hailed the 56-year-old's efforts since pitching up in Glasgow last summer and believes the difference between now and a year ago is night and day.

"The transformation since Ange Postecoglou came into the football club, what he's had to do in such a short space of time - nine of those 11 players last night were new signings," McDonald added.

"So the transformation that he's been able to install at that football club and the style of play has been wonderful.

"Reo Hatate, one of signings in January, is already a superstar. They're already saying Shunsuke Nakamura, a huge legend of Celtic and Japanese football in the past who I was lucky enough to play with, they're already saying he's as good as him.

"If he lives up to that - wow."