Atletico under scrutiny after fan invades field

UEFA has opened disciplinary proceedings against Atletico Madrid after a supporter escaped security to approach Cristiano Ronaldo following Tuesday's game.

The incident occurred after the final whistle of the UEFA Champions League quarter-final first leg between Atletico and Real Madrid at the Vicente Calderon.

A member of the crowd made it to the side of the pitch and grabbed the shirt of Ronaldo, who embraced the man before security guards led the intruder away.

A UEFA statement on Wednesday confirmed the opening of the proceedings, as well as citing a charge of "insufficient organisation" for stairways being blocked.

The case is due to be dealt with on May 21.