Ronaldo retires from training after Casilla collision

Cristiano Ronaldo being looked at by Madrid medics.

Cristiano Ronaldo being looked at by Madrid medics.

Así fue el encontronazo de Cristiano con Kiko Casilla

Cristiano Ronaldo recibió un golpe en el muslo tras chocar con Kiko Csilla.

Cristiano Ronaldo after his collision with Casilla in training.

Cristiano Ronaldo leaves training after the collision with Casilla in training today.

Cristiano Ronaldo leaves training after the collision with Casilla in training today.

Cristiano Ronaldo leaves training after the collision with Casilla in training today.