Cristiano Ronaldo left Real Madrid's practice early after an injury scare but doctors say the striker is not at risk of missing the Champions League final.

Ronaldo hurt his left leg after colliding with reserve goalkeeper Kiko Casilla near the end of practice on Tuesday. He appeared in pain and stayed on the ground for a few moments as players surrounded him with concern.

After being assisted on the field, the Portuguese forward walked off the pitch on his own and doctors quickly dismissed any serious injuries.

Ronaldo said it was just a scare and guaranteed he will be fit to play Saturday's final against Atletico Madrid in Milan.