Theo Walcott admits Arsenal players are worried Alexis Sanchez may suffer burnout if he doesn't ease back.
Walcott praised Sanchez's impact but warned his teammate to be careful ahead of the hectic Christmas period.
"In training he doesn't even want to do recovery days," Walcott told talkSPORT. "That's how much he loves football.
"All the guys have told him he needs to chill out because, at Christmas when all the fixtures come along, it's going to catch up with you.
"He doesn't care, he just wants to play and win. He's a good leader, and something that we haven't had in the Arsenal team before. He's a dream to play with."
