Ole Gunnar Solskjaer's United knew that a third victory in four Group L games would be enough to send them through.
Forster also revealed that Celtic will now be aiming to top their group. But in their bid to win nine in a row, playing more football after Christmas may have given Rangers the advantage - if Rangers fail to qualify. The boys wanted to go forward, play forward, run forward. "But a pleasing performance, and very important for us to get the points", he told reporters.More news: Murderer's heart stopped, but his life sentence doesn't: Iowa court
Olivier Ntcham scored the victor for Celtic with one of the last kicks of the game.
"This team keeps setting new boundaries for itself", said ecstatic manager Neil Lennon.More news: Messi equals Ronaldos record for LaLiga hat-tricks
Paulinho's first half double set Braga on the way to a 3-1 home win over 10-man Besiktas to keep them top in Group K where Wolverhampton Wanderers missed a penalty and needed a late Raul Jimenez header to win 1-0 against Slovan Bratislava at Molineux.
We have done well to this point but we want to finish strong and yes hopefully go on and win the group.
Off the pitch, there were sadly more incidents, with another Celtic fan stabbed on Thursday after the game, and it's clear everyone on this side of the Channel will be glad these matchups are over, so maybe it's time for certain Lazio ultras to put their hands down and use them to pray for their team's qualification out of Group E.More news: Danny Murphy highlights surprise Chelsea star for praise after Crystal Palace win