Manchester United have launched an investigation to identify the fans who threw objects at Diego Simeone at the end of Atletico Madrid‘s victory at Old Trafford on Tuesday, sources told ESPN.

Simeone was pelted with bottles and cups as he sprinted down the touchline towards the tunnel following United’s Champions League exit at the hands of the Spanish champions.

• Don’t have ESPN? Get instant access
  – Ogden: Man Utd is where big stars go to struggle

Renan Lodi’s first-half goal earned Atletico a 1-0 win on the night and a 2-1 aggregate victory to book their place in the quarterfinals.

United, meanwhile, have won just two Champions League knockout ties since 2011.

Sources have told ESPN that United will look to identify the supporters thought to have been involved in throwing objects at Simeone before deciding whether or not to take action.

UEFA’s disciplinary body are awaiting reports before deciding whether sanctions are necessary.

Speaking after the game, Simeone played down the incident insisting he was not aware that objects had been thrown at him from the crowd.

“When I came off the pitch, I ran because I was happy and I like to enjoy it in the dressing room,” the Atletico boss said.

“So I don’t know what happened. What you just said, all I was thinking about was getting into the changing room to the dressing room, and I was really happy.”

Sourced from Man United