Excited Celtic boss Ange Postecoglou admits he is relishing a "great challenge" when he takes his league leaders to Ibrox next week.
Champions Rangers are three points adrift and a victory for the away side will put them six points clear and on course for Premiership title glory.
Celtic are buoyed by their fearsome domestic run since September which includes a thumping 3-0 win over their great rivals on home turf on February 2
