Orioles second baseman Brian Roberts had surgery in December to repair a sports hernia but says he is fully recovered and is already back doing baseball activities.

The 35-year-old Roberts, who underwent surgery to repair a torn labrum in his right hip in August, had been rehabbing since September in preparation to start the 2013 season. His rehab in Sarasota, Fla., had been going well, he said, but he began feeling some discomfort and inflammation in his abdomen area.

On Dec. 19, he was examined by Dr. William Meyers, a sports hernia specialist in Philadelphia who has performed surgeries on the Orioles' Nick Markakis, Brian Matusz and Ryan Adams, among others. Meyers diagnosed the hernia – something Roberts says often "runs parallel" with the hip injury and rehab – and because the recovery time was estimated at only one month, Roberts decided to have the procedure the next day.

"If I was going to have any type of surgery, it's probably the best one to have," said Roberts, who talked with Matusz and Markakis before the procedure. "I knew it really wasn't going to affect me much."