Brian Roberts has been sidelined since injuring his right hamstring… (Kim Klement, USA TODAY Sports )
Oft-injured Orioles second baseman Brian Roberts is expected to miss at least another six weeks after making the decision Wednesday to have surgery to repair a muscle in his injured right hamstring.
Roberts, who was injured while sliding into second base on a stolen base April 4 in Tampa Bay, visited specialist Dr. Daniel Cooper on Tuesday because he wasn’t satisfied with how his recovery was progressing.
Cooper will perform the surgery Thursday in Dallas to repair the semitendinosis muscle in his right hamstring.
The 35-year-old Roberts has played in just 118 games since the beginning for the 2010 season because of multiple concussions and hip surgery that ended his 2012 season after just 17 games.
When Roberts hobbled off the field on April 4 in obvious pain, the original recovery time was three to four weeks. But Thursday will mark five weeks since the injury.
Now, Roberts, who is in the final year of a four-year, $40-million contract, is expected to be out until at least late-June.
The semitendinosis muscle is one of the three muscles in the back of the thigh that helps to straighten the hip joint and bend the knee. When Roberts was first injured, he said he felt a pop in the back of his right knee.
He will report to Sarasota, Fla., to rehabilitate after surgery.
Roberts managed to remain healthy throughout a long spring training and was optimistic he'd be able to contribute in the final year of his contract. But now this season has become much like the past three, shifting between doctors visits and rehab.
He began the season 5-for-12 before the injury.