Images from Cubs players and personnel at spring training in Mesa on Thursday. Kerry Wood prepares to wind up.

Bruce Miles | Staff Photographer

Images from Cubs players and personnel at spring training in Mesa on Thursday.

Bruce Miles | Staff Photographer

Images from Cubs players and personnel at spring training in Mesa on Thursday. 3B nonroster man Scott Moore awaiting a pitch in the cage

Bruce Miles | Staff Photographer

Images from Cubs players and personnel at spring training in Mesa on Thursday. 3B prospect Marquez Smith getting ready to hit

Bruce Miles | Staff Photographer

Images from Cubs players and personnel at spring training in Mesa on Thursday.

Bruce Miles | Staff Photographer

Images from Cubs players and personnel at spring training in Mesa on Thursday.

Bruce Miles | Staff Photographer

Images from Cubs players and personnel at spring training in Mesa on Thursday. Billy Williams showing he still hasÊa "sweet swing" in the cage

Bruce Miles | Staff Photographer

Images from Cubs players and personnel at spring training in Mesa on Thursday.

Bruce Miles | Staff Photographer