"Adam Rosales, a valuable backup for the A's last year, had foot surgery in December and hasn't found his stride this season.

So after a late start to 2011 and limited at-bats when he's been with the A's, Rosales plans to spend a month playing for Mexicali of the Mexican Winter League this fall.

"It's just been a crazy year, trying to come back from the foot thing," he said. "I kept hoping I'd feel good when I came back, but I haven't played the way the team needs me to play.""