Jose Mourinho has revealed his gesture to Juventus fans after Manchester United's 2-1 win in Turin was payback for "90 minutes" of insults.
Mourinho, who spent two years in charge of Inter Milan, cupped his ear at the final whistle provoking a confrontation on the pitch with Leonardo Bonucci and Paulo Dybala.
The United manager suggested afterwards the Juventus supporters had brought it on themselves.
"In beautiful Italian, they insulted me for 90 minutes," he told BT Sport. "I didn't insult them. I just made a little thing. I respect Juventus, I respect their players, their manager -- I respect everything. I'm really proud of my boys because the performance was really good."
Two late goals helped United fight back from 1-0 down to beat the Italian champions after Cristiano Ronaldo had given the home side the lead. It puts United in a fantastic position to qualify from Group H and they can book their place in the knockout rounds with a win over Young Boys at Old Trafford, provided Valencia do not beat Juventus.
"The game was a very good game, a high level game," Mourinho said. "The game was really top and I think we perform at a high level. "After their goal I think we had five minutes to wake up again but the team was there was the first minute to the last."
Mourinho also claimed United have "one final to play" if they want to get through.
"Juventus have phenomenal players," he added. "That Cristiano Ronaldo goal was beautiful and the player [Leonardo Bonucci] that made that beautiful pass, is a central defender! They are a fantastic team with an amazing record at home.
"We have one final to play at home against Young Boys. If my mathematics is right then we qualify [only if Valencia don't beat Juventus] so I think now I leave it to the Old Trafford people. I hope we arrive on time! We had an amazing escort here today -- thank you to the Italian police. Hopefully we can get all three points."