He also said he's talked to the Red Sox about possibly playing some left field, which would give him more at-bats.
"Funny, I was an outfielder in college and converted to first base," Overbay said. "We've had some discussions about it."
Overbay has had a rough couple of years at the plate, but he said Arizona hitting coach Don Baylor made an adjustment in his swing that shortened it up.
"My swing had gotten long and I wasn't able to get it back," Overbay said. "Don did a drill with me and it just clicked for me."
Overbay has been a Red Sox killer in the past, but he said, "I just love hitting at Fenway Park. It's suited to my swing. I've always felt really comfortable hitting there."