Real Madrid goalkeeper Iker Casillas admits he's keen on a move to MLS.

Casillas, now 31, says Real may not be his last club.

"If the criticism is now fierce at 31 years of age, imagine in a few years. What I have made clear is that I will not go to another team that competes with Real Madrid.

"I'll enjoy football in a more relaxed arena, for example in the United States."