"After undergoing medical tests it has been found that Xabi Alonso has a perforated left eardrum as a result of a blow received in the match against Valencia," said a club medical report released online.

Real Madrid gave no details on Alonso's outlook beyond the fact it depended on the player's progress.

Perforated eardrums usually heal on their own within two months but surgery is sometimes performed in severe cases.

Alonso was elbowed by Valencia's French player Jeremy Mathieu in the 58th minute of Sunday's match, which Madrid won 2-3. It was Real's last game before the Christmas break.

The player alerted club doctors when the pain in his left ear did not ease after the end of the game, and he had to return to Madrid by car instead of taking the plane due to the injury, Spain's press said.

Real Madrid's next game is a friendly against Paris Saint-Germain on January 2 in Doha. They return to Liga competition January 6 against Celta.