Manager Alex Ferguson is demanding no more Champions League slip-ups from his Manchester United team.
A surprise defeat in their last game at FC Copenhagen means United still need a point to be sure of going through to the last 16.
Ferguson wants to clinch their progress in the all-British clash at Celtic on Tuesday rather than rely on the final Group F game against Benfica at Old Trafford next month.
"We took a wee risk (with team selection) in Copenhagen and because we lost it didn't work out," he told reporters. "It should have worked out.
"The game in Copenhagen was hard to explain. It was unusual but we are on nine points and we want to make sure we come back from Glasgow qualified."
Ferguson left out Paul Scholes, Rio Ferdinand and Patrice Evra in Copenhagen where he was also without the injured Ryan Giggs and Louis Saha.