Red Sox medical director Dr. Thomas Gill released a statement today regarding Wily Mo Pena's wrist injury:
"Wily Mo Pena underwent diagnostic testing and further examination on Tuesday. He has an injury to the hamate bone in his left wrist. The plan is to perform a surgical procedure on Thursday morning to treat the injury.
"Wily Mo will immediately begin rehabilitation on the wrist. He will be able to continue his throwing and conditioning programs throughout the entire post-operative period."
Pena was placed on the 15-day disabled list on May 28. He is batting .321 with four homers and 18 RBI in 36 games with the Red Sox this season.