The Nationals learned on Saturday that right-hander Brian Lawrence will miss most of the 2006 season with a torn labrum. Lawrence will have surgery at the Washington Hospital Center in D.C. on Sunday. Dr. Weimi Douoguih, the team's orthopedic physician, will perform the surgery. The early prognosis is that Lawrence will be out until August, but if his injury is similar to Tony Armas Jr.'s -- in which he had both a torn rotator cuff and labrum -- Lawrence would be out for the rest of the season. "I'm disappointed that he will not be able to compete for a job on the starting staff," Robinson said. "The main thing now is for him to get this thing taken care of. [Hopefully he can] come out of the surgery OK, rehab it and get back as soon as he can."