Casillas said: "He is a very good player for us: electric, fast, destabilizing. It is clear that when he is injured, the team notice it. There is a lot of attention to the physical problems he has.
"His goal was fantastic, one of those ones that usually you only see in training."
Asked about heavy criticism of his own performances this term, Casillas shrugged: "I've played 10 seasons in a row in the Primera. It is normal to have one, two or three bad months."