Rangers made it 3-1 after Kemar Roofe ran into the box unmarked to header the ball beyond a helpless Scott Bain. Rangers, who have their full compliment of 11 players on the park, have dominated the start of the second half but David Turnbull almost nodded Celtic level after a tantalising cross from James Forrest.

Forrest found Turnbull in the box, who’s glancing header went by the post when he really should’ve rippled the net.

Barisic floated the cross into the box, Roofe wasn’t followed and he dispatched the ball into the net. Celtic’s defending has been passive and endemic of this season. The basic principles have been lacking and you have to ask questions of everyone at the club.