Atletico Madrid manager Diego Simeone admitted his behaviour was unjustifiable after he was sent off following a heated altercation with a Liverpool fan following the home side's stoppage time winner in the Champions League on Wednesday, Reuters reported.

The Argentine had seen his side claw back a two-goal deficit but Virgil van Dijk then headed into the net in the 92nd minute to condemn Atletico to a 3-2 defeat at a raucous Anfield.

Simeone appeared enraged by a Liverpool fan behind the technical area and was eventually sent down the tunnel by Italian referee Maurizio Mariani.

Afterwards he said he had endured insults for 90 minutes, according to Reuters.