Rangers were brought crashing back to earth following their heroics against Borussia Dortmund as they were held to a 1-1 draw by Dundee United at Tannadice.
The Ibrox side, who pulled off a stunning 4-2 win away to the German giants in the Europa League on Thursday, missed the chance to pile the pressure on cinch Premiership rivals Celtic.
Giovanni Van Bronckhorst's team fell behind to a first-half goal from 20-year-old United defender Ross Graham but despite dominating the second half, they only had a Joe Aribo equaliser to show for their efforts.