A strange thing happened in December 2019. Rangers came to Celtic Park and won a key match, with supporters present. Celtic recovered that season to claim the Premiership title anyway but the ongoing pattern for Rangers in this fixture is an ominous one.
Quite often, much like here, they do not play especially badly; yet they find themselves unable to find a path to victory. Celtic have gone the entire league season unbeaten in Old Firm games. They will be licking their lips at the prospect of a Scottish Cup final against Rangers later this month.
