Real Madrid third-choice goalkeeper Luca Zidane has undergone a shoulder operation and will remain sidelined for an unknown period of time, the club have announced.

Madrid boss Zinedine Zidane's son, 19, was promoted to the senior squad for the 2017-18 campaign as backup to Keylor Navas and Kiko Casilla, and featured briefly for the team in preseason.

When Costa Rica's Navas was injured on international duty in early October, it was reported that Luca had a problem that may have been related to the injury suffered in March and ended his campaign for Madrid's youth sides.

Madrid have now confirmed the underage France international required surgery on the problem.

"Luca Zidane has been operated on for a Hill-Sachs fracture on his right shoulder," a club statement read. "The operation was performed at the Jean Mermoz Hospital in Lyon by Dr. Gilles Walch, under the supervision of the Real Madrid Sanitas Medical Services. Pending evolution."

With Navas still currently sidelined, Casilla is set to continue between the posts in Wednesday's Champions League Group H game against Tottenham at Wembley, with 17-year-old Moha Ramos on the bench.