Roma ultras have made clear their anger towards Manchester United boss Ole Gunnar Solskjaer.
Roma go to United for the first-leg of their Europa League semifinal on Thursday.
Solskjaer irked Roma fans earlier this month after United's quarter-final victory over Granada.
“I've not really seen too much of them," Solskjaer said of the Serie A side, speaking to BT Sport.
“I know they've had two good games against Ajax where they defended well, as Italian teams always do.
And Roma fans showed their displeasure with a series of posters outside the club's training ground.
The banners feature a picture of Solskjaer alongside the quote: “I don't know them and I haven't seen them play."