Reds outfielder Ryan Ludwick tore cartilage in his right shoulder while sliding into third base during the season opener and will need surgery, leaving the defending NL Central champions without one of their main run producers for an uncertain period. The team didn't project how long Ludwick would be out. Ludwick dislocated his right shoulder on a headfirst slide in the third inning of Cincinnati's 3-1, 13-inning loss to the Los Angeles Angels on Monday. He said the shoulder popped out when his hand caught on the dirt.