Ben Sheets is considering elbow surgery that would probably keep him out for most, if not all, of the 2009 season, according to a major league source familiar with Sheets' medical prognosis. The surgery would repair the torn flexor tendon in his pitching elbow that kept Sheets from pitching for the Brewers in the NLDS. The normal recovery time from the procedure, according to the source, is nine to 10 months.