Chicago White Sox pitcher Mark Buehrle, left, is embraced by teammate Josh Fields after tossing a perfect game against the Tampa Bay Rays in a baseball game, Thursday, July 23, 2009, in Chicago. The White Sox won 5-0. (AP Photo ...

Chicago White Sox pitcher Mark Buehrle, left, is embraced by teammates Josh Fields (obscured) and catcher Ramon Castro, right, after tossing a perfect game against the Tampa Bay Rays in a baseball game, Thursday, July 23, 2009, in Chicago. The ...

Chicago White Sox pitcher Mark Buehrle, left, is embraced by teammate Josh Fields after tossing a perfect game against the Tampa Bay Rays in a baseball game, Thursday, July 23, 2009, in Chicago. The White Sox won 5-0. (AP Photo ...

Chicago White Sox's Josh Fields breaks his bat on a two-run home run off Los Angeles Dodgers starting pitcher Randy Wolf during the fourth inning of an interleague baseball game Wednesday, June 24, 2009, in Chicago. Fields hit another ...