Celtic had to dig deep for their win over Kilmarnock on Sunday. There are moments during the season when you put in these types of performances and all that matters is the end result. Come the final whistle at Rugby Park, Celtic were celebrating three points against Kilmarnock, and to boot, they secured a clean sheet. It’s understandable why life was so difficult for the champions because of the week the club has just had in three different competitions. From thrashing Aberdeen in the League Cup semi-final to Brendan Rodgers masterminding a stunning win over RB Leipzig in the Champions League….
