It was another afternoon to forget for Rangers at Parkhead as they were down and out before half-time in Celtic's backyard.
Lessons were supposed to have been learned from last February's collapse at this venue. But once again, the Ibrox side found themselves out of the game after just 45 minutes as the hosts raced into a three-goal lead without their rivals laying a glove on them.
This time, the champions rubbed salt in the wounds after the break. Jon McLaughlin perhaps sold himself a little early for the second goal, although you can take nothing away from Jota 's magnificent finish. There was no doubting the Gers keeper's culpability for David Turnbull's fourth, however. He made a mess of a pass out from the back and Celtic's press being as effective as it is, the midfielder was able to take a touch then roll the ball home to complete the derby humiliation for Gio van Bronckhorst 's side.
