Luka Modric faces more than a month out of action after an operation to remove a piece of cartilage from his left knee. Modric suffered knee problems during the 14-15 season.

Isco started in Modric's place on Sunday.

"Our player Luka Modric has today undergone an arthroscopy on his left knee to remove a fragment of cartilage of post-trauma origin," the statement said.

"The operation was carried out successfully under the supervision of Real Madrid's head of medical services, doctor Jesus Olmo. Modric will begin his recovery process tomorrow."

Real Madrid were already without Casemiro in midfield.