Former Celtic boss Neil Lennon admits he is a paid-up member to the Ange Postecoglou supporters membership as a result of Australian's efforts this season.
The 50-year-old Omonia Nicosia boss anticipated a response, after a season to overlook that led to the Irishman strolling away in February amid a botched try at 10 In A Row.
However even he has been left critically impressed with the outcomes and the fashion of play during which now play underneath Postecoglou's stewardship.
And now the present Celtic boss is eyeing a signature end result at Ibrox.
Lennon believes it is Rangers boss Gio van Bronckhorst who now has some pondering to do forward of the conflict between the edges on Sunday.
Talking on talkSPORT, he mentioned: "I am not stunned.
"We had a whole lot of issues final 12 months and it wasn't a pure season.
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"I make comparisons to Liverpool's season, once they had a whole lot of issues and nearly made fourth place.
"I at all times thought Celtic would improved however he is achieved a marvellous job.
"He is actually needed to do a whole lot of surgical procedure on the squad, which was required, however it appears to have been seamless.
"He had a extremely good January and I actually like how Ange comes throughout within the media.
"I feel he is fairly straight and I really like the best way that his crew performs.
"The way in which that they dealt with the final Outdated Agency was incredible.
"I do not assume anybody seen that efficiency coming.
"For Gio (van Bronckhorst), he in all probability obtained the strategy incorrect and I feel each groups shall be firmly set on an enormous encounter.
"The significance of this sport could have ramifications because the season goes on."
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