Roma midfielder Lorenzo Pellegrini says the players are still trying to live down their Europa Conference League thrashing at Bodo/Glimt.
Jose Mourinho oversaw a shocking 6-1 European defeat in Norway earlier this season.
“Everyone here understand how bad the loss in Norway was," admits Pellegrini.
“We need to keep that one in our heads to make sure it never happens again.
"Sometimes you are going to lose games, but it can't happen that you lose one in that fashion."