Martin O'Neill believes Celtic will take the game to Rangers this weekend.
Ange Postecoglou 's philosophy is to attack and he is likely to do the same again at Ibrox.
Celts know three points would go a long way to securing the Premiership title as it would take them six points clear.
Giovanni van Bronckhorst, meanwhile, will be desperate to reduce Celtic's lead and even the playing field.
For O'Neill it could be make or break for the Light Blues at home.
"If Celtic come out of the match unscathed then you would have to say they’re really in pole position," he told Radio Clyde.
“Of course if Celtic go and win the game and I’m sure that’s probably in Postecoglou’s mind – thinking ‘I’m not going to change for anything, I’m going to go to Ibrox and attack’ – then you would have to think their position is very strong indeed.
“The pressure at this minute is very much on Rangers to get the result, it’s a home fixture for them and a big, big match for them.
“They’re three points behind and they’re unlikely - not impossible - to claw back that goal difference in the number of matches left.
“You could think at this stage that looks like a four point differential so really Rangers must win that game.
“I know they’ve got Celtic again at Celtic Park but really they’ve got to win this game.”
Gers' European exploits will have given them confidence to go into any game thinking they can win.
And O'Neill believes they'll have a good chance in the quarter-finals against Braga.
“The result against Dortmund will have given them super confidence to know they can compete in European football," he added.
“That was a big shout, a terrific result, when you consider what Dortmund are capable of in the Bundesliga and believe they can contest against the other seven teams left in the competition.
“You’ve got Braga over two legs which isn’t something you would look forward to but you would not fear and who knows?”
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