Rangers drew level with Celtic in second place in the Scottish Premiership as Youssef Chermiti's second-half double and Mikey Moore's clincher gave Danny Rohl's side an incredible comeback win.
Yang Hyun-Jun's thumping finish was scant reward for Celtic's dynamic first-half display but the script flipped entirely as Rangers seized on their opportunity and the hosts' defensive fragility.
As events unfolded, a furious response from Celtic supporters emerged as they targeted the board, with ugly scenes in the stands as matters on the pitch increasingly became a side show.
It's now six defeats in eight outings for under-siege manager Wilfried Nancy, who watched on as defensive frailty once again cost his side after initial promise evaporated.
For Rangers, eight points adrift of the champions when Rohl took charge, they are now firmly in the fight for the Premiership title after a stunning victory.
The stakes were incredibly high, with Rangers looking to claw their way back into the title race and, incredibly, level on points with Celtic. Given their start to this campaign that seemed unimaginable not long ago.
Nancy simply needed something to go right in a game of such importance. Yet again, a nightmare unfolded for the Frenchman.
However, on the evidence of the first half, Celtic should have won this comfortably.
Yang's finish was superb, arrowing straight into the corner from a tight angle as the home side went for the jugular.
The South Korean looked inspired in the opening 45. Yet it was the complete opposite come full-time like every one of his team-mates.
Chance after chance arrived. Auston Trusty somehow missed a free header. Johnny Kenny was wasteful. Jack Butland stood defiant as Rangers were rocking.
Celtic failed to extend that lead and they were punished in full when Nicolas Raskin dribbled untouched past Trusty to the byeline and Chermiti tapped home from close range.
It got better for Rangers so easily. Chermiti surged into space down the left, Trusty decided not to close him down and the striker gratefully found the far corner.
Much-maligned since his arrival, the big-money striker repaid a big chunk here.
Rangers clearly sensed another would end the contest and Moore delivered with a fine finish.
That sparked furious scenes in the stands as Rangers fans rejoiced in the corner. A statement win for Rohl and, perhaps, a statement defeat for Nancy.
Image source, SNS
