Roy Halladay has successful surgery, said to be 'best-case' scenario

Roy Halladay underwent successful surgery and is expected to begin throwing in six to eight weeks. (Rob Carr/Getty Images)

Phillies starting pitcher Roy Halladay underwent successful arthroscopic shoulder surgery and he is expected to return this season, reports CBS sports.

No additional damage was found to the shoulder, and Halladay won't require more extensive surgery, a "best-case" scenario, according to people close to him. He is expected to begin throwing in six to eight weeks. Halladay was 2-4 with an 8.65 ERA prior to the surgery.