Kris Boyd was visibly irritated on Sky Sports after what one Rangers star did against Celtic in the Old Firm. Philippe Clement’s 10-man side lost 2-1 to the Hoops at Parkhead, with a number of decisions going against Rangers on the day. But Celtic were more clinical and were able to take their chances, unlike a very wasteful Rangers. Paulo Bernardo and Kyogo scored for them, with James Tavernier netting a sensational consolation free-kick. There was still time to get a leveller after that strike but after 100 minutes of play, Gers fell to defeat in the east end of Glasgow. But it could have be…