The manner of the goals conceded by Casillas was bad enough for Mou, but he was also unhappy with the Real captain again mixing with Barca's players after a tense El Clasico.
El Mundo Deportivo says Mourinho was upset as Casillas ignored his Real teammates to congratulate Barca's players at the final whistle, finishing with Victor Valdes.
"Did you see Iker at fulltime?" Mou is claimed to have said to one member of staff. "Yeah, I see it. The next time he'll go off with them!"