Kris Commons reckons Ange Postecoglou will order his Celtic side to take an even more hell for leather approach when they meet Rangers again on Sunday.
The Premiership's top two are set to collide in a mammoth Scottish Cup last four showdown at Hampden just days after the Ibrox side take on Braga in the Europa League.
Giovanni van Bronckhorst's side can book a place in the semi-finals if they overcome a 1-0 deficit against the Portuguese outfit from the first leg.
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