FILE - This July 2, 2010 file photo shows Arizona Diamondbacks team president and chief executive Derrick Hall answering questions during a news conference, at Chase Field, in Phoenix. Hall has ... more 
FILE - This July 2, 2010 file photo shows Arizona Diamondbacks team president and chief executive Derrick Hall answering questions during a news conference, at Chase Field, in Phoenix. Hall has prostate cancer. The team said Tuesday, Sept. 20, 2011, a prostate biopsy performed Sept. 14 revealed tumors. (AP Photo/Ross D. Franklin, File) less 
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Associated Press | Photo By Ross D. Franklin, File
Tue, Sep 20, 2011 4:06 PM EDT