OAKLAND, CA - JANUARY 26: General manager Billy Beane (L) of the Oakland Athletics listens to Frank Thomas speak during a press conference, after Thomas signed a one-year contract with the team, at...

Unknown date 1996: Cleveland, OH, USA; FILE PHOTO; Chicago White Sox 1st baseman Frank Thomas hitting against the Cleveland Indians at Jacobs Field. Mandatory Credit : Photo By US PRESSWIRE (c) Copyright...

...8-6. (Photo by Stephen Dunn/Getty Images) Oakland Athletics v Seattle Mariners SEATTLE - APRIL 27: Frank Thomas #35 of the Oakland Athletics jogs around the bases against the Seattle Mariners on April 27...

OAKLAND , CA - JULY 02: Frank Thomas #35 of the Chicago White Sox hits an RBI single in the sixth inning against the...

SEATTLE - APRIL 27: Frank Thomas #35 of the Oakland Athletics looks on during the game against the Seattle Mariners on April...

Unknown Date; Chicago, IL, USA; FILE PHOTO; Chicago White Sox 1st baseman Frank Thomas hitting at Comiskey Park during the 1992 season

New York Yankees reliever Joba Chamberlain reacts after striking out Toronto Blue Jays' Frank Thomas, stranding a runner for the third out in the eighth inning of the Yankees' 3-2...

CHICAGO - JULY 20: Frank Thomas #35 of the Chicago White Sox takes a cut on the ball against the Detroit Tigers...

CHICAGO - JULY 20: Frank Thomas #35 of the Chicago White Sox takes a cut on the ball against the Detroit Tigers...

Frank Thomas #35 of the Oakland Athletics waits on deck during the game against the Los Angeles Angels...

Frank Thomas of the Oakland Athletics bats during the American League Championship Series (ALCS) Game #3 against the...

Frank Thomas of the Oakland Athletics bats during the American League Championship Series (ALCS) Game #3 against the...

Apr 18, 2008; Toronto, ON, Canada; Toronto Blue Jays designated hitter (35) Frank Thomas reacts to his strike out against the Detroit Tigers at the Rogers Centre in Toronto, ON...

BOSTON - JULY 13: Frank Thomas #35 of the Toronto Blue Jays swings at the pitch during the game against the Boston...

Chicago White Sox's Frank Thomas follows through on a home run against the Seattle Mariners on July 30, 1994 in Chicago...