Goalscorer Lee Wallace says the prospect of stopping Celtic clinching the SPL title spurred on underdogs Rangers to beat their Old Firm rivals.
The home side, who trail their fierce rivals by 18 points after being docked 10 for entering administration, saw off a late Celtic fightback to clinch a 3-2 win in Sunday's derby at Ibrox.
Goals from Sone Aluko, Andy Little and Wallace helped Rangers race into a commanding lead, as Cha Du-Ri and Victor Wanyama both saw red for the Hoops.
Rangers were reduced to 10 men when Carlos Bocanegra was dismissed and Scott Brown converted from the resulting penalty before Thomas Rogne netted deep into injury-time.
But Rangers held out to ensure the champagne stays on ice a little longer for Neil Lennon's side - and prove a point to their detractors.
"Spoiling Celtic's title party was an extra bit of motivation for us," said Wallace.
"We knew what could have happened if they'd won the game. We knew exactly what we were up against.
"But testament to the players and the management, I think we got everything right.
"We knew exactly what was expected, we knew everybody had written us off and that might have spurred us on. Everybody worked their socks off.
"There was plenty of energy and plenty of work rate and plenty of endeavour and the atmosphere helped because the fans were tremendous."