Texas Rangers manager Ron Washington (38) and catcher Mike Napoli, left, talk to starter Martin Perez land Athletics, Wednesday, Sept. 26, 2012, in Arlington, Texas. (AP Photo/Tony Gutierrez)
Oakland Athletics manager Bob Melvin during batting practice before a baseball game against the Texas Rangers Tuesday, Sept. 25, 2012, in Arlington, Texas. (AP Photo/Tony Gutierrez)
(AURN) -- The winner of the American League West will be decided today on the final day of the MLB regular season.