George Kruis faces race against time to prove fitness for Lions selection

• Saracens second row had knee surgery in February• Kruis’s comeback could be three days before Gatland names squadGeorge Kruis faces a race against time to convince Warren Gatland he warrants a place in the British and Irish Lions squad this summer but the Saracens director of rugby, Mark McCall, believes the second-row already has enough credit in the bank to deserve selection.Kruis missed the Six Nations after undergoing knee surgery in early February and will miss Saracens’ European Champions Cup quarter-final against Glasgow on Sunday. The earliest he is likely to make a comeback is again…