Ange Postecoglou ain't banking on Rangers theory playing out as Celtic boss aims to avoid a trap

Celtic manager Ange Postecoglou believes his side must produce their best performance of the season to defeat Europa League high-flyers Rangers.

And the 56-year-old isn't banking on Gio van Bronckhorst 's side being below their best when the sides meet in Sunday's mouthwatering Scottish Cup semi final.

Rangers outlasted Braga after extra time on Thursday night to secure a place in the last four and will face RB Leipzig for a place in the Final.

But Postecoglou believes the Ibrox men's lung-bursting efforts can act as a help rather than a hindrance when the two teams meet at the national stadium.

Speaking before Sunday's clash, the Celtic boss said: "I think if you fall into the trap of looking for some sort of advantage or looking for some sort of weakness then I think that's where the pitfalls are.

"We expect to play every opponent at their absolute best. We don't think we are going to go out there on Sunday and because Rangers had a sort of big game last night that they are going to be something less than what they can be.

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"We will go out there preparing for them to be the best they can be as we have in every game we have played against them or any other opposition to be fair.

"And that