Real Madrid centre-back Joan Martinez has signed a new contract with the club through to 2027.
The 17-year-old, who is currently recovering from a ruptured cruciate ligament in his left knee, is one of the highest-rated young players at the club.
Martinez’s deal through to 2027 is the maximum contract length he can have an under-18, with his release clause in excess of €60million (£50.2m; $65.5m).
The Spain Under-17 international is currently recovering with Madrid’s Juvenil A side having undergone surgery in September.
Martinez had part of the first team during Madrid’s U.S.