Celtic captain Callum McGregor underlined the difference in class between the Premiership champions and Rangers with a brilliant strike to round off a 3 - 0 Old Firm victory at Parkhead on Sunday . McGregor delivered his second screamer of the season to add to first - half goals from Daizen Maeda and Kyogo Furuhashi as Celtic went top above Aberdeen on goal difference and five points ahead of their city rivals . Rangers started both halves brightly but could not deal with or match Celtic ' s cutting edge . Celtic adapted seamlessly to the loss of last season ' s star player , Matt O ' Riley , as Paulo Bernardo produced a first - half display bursting with energy and invention while McGregor dictated play and Reo Hatate produced several moments of class . They later introduced new signings Arne Engels and Luke McCowan with the latter instantly looking at home following his move from Dundee . Rangers had Vaclav Cerny making his debut in the fixture but the winger failed to live up to expectations following a b right start to his career in Glasgow . dpa pa bagSource: The Namibia News Agency