Brian Roberts is scheduled to undergo surgery Thursday morning on his injured right hamstring. Roberts ruptured a tendon in the back of his right knee (connected to the hamstring) in early April. He tried rehabbing it without surgery, but that didn't work out. The second baseman will be out at least six weeks.

Brian Roberts will visit a specialist on Wednesday in Dallas for an examination of his injured right knee. Roberts ruptured a tendon in the knee in early April and began feeling renewed discomfort when he tried to ramp up his rehab last week. He remains out indefinitely.

Brian Roberts (knee) threw at 75 feet and did some soft-toss swinging on Tuesday. The Orioles are easing the veteran second baseman back into baseball activities as he recovers from a ruptured tendon in his right knee. The club doesn't expect to have to move him to the 60-day DL, but there's no timetable for his return.

Brian Roberts (knee) has been cleared for light running exercises. Roberts had been limited to working out on a pool treadmill, so it's a step in the right direction. It's still going to be a lengthy rehab process for Roberts before he rejoins the Orioles. He remains without a timetable to return.

Brian Roberts (knee) jogged on a treadmill in a pool on Thursday. It's a small first step, but a step nonetheless. "That was encouraging," Orioles manager Buck Showalter said. "He's making some improvement. He's feeling better every day." There's no timetable for Roberts' return.

Orioles manager Buck Showalter said Thursday that Brian Roberts (knee) will likely not be ready to return in two weeks. Roberts suffered a ruptured tendon in his knee last week and was given a timetable of 2-4 weeks. While he's no longer limping, he's not expected to meet the low-end of that timetable. Ryan Flaherty and Alexi Casilla will continue to fill in at second base for now.

Brian Roberts (hamstring) is expected to be placed on the disabled list prior to Friday's game. It's certainly no surprise. Roberts left Thursday's game after feeling a pop in his right hamstring near the back of his knee, and it's possible he'll require a lengthy absence. Yamaico Navarro is expected to replace him on the roster.

Brian Roberts said after Thursday's game that he had to exit after feeling something in the bottom of his right hamstring. Well, perhaps that's better than a knee injury as was originally speculated. Roberts will be re-evaluated Friday, but it seems likely that he'll wind up on the disabled list. A hamstring injury shouldn't keep him out too terribly long, but you never know with the injury-prone veteran infielder.

Brian Roberts exited Thursday's game in the ninth inning with an apparent injury to his right knee. This guy just can't catch a break. Roberts suffered the injury on a slide when he stole second base and had to be helped off the field. The Orioles should provide an update soon, but Alexi Casilla and Ryan Flaherty would likely fill in if he needs to miss significant time.

Brian Roberts will hit ninth for the Orioles at the beginning of the season. It appears the Orioles will go with Nick Markakis in the leadoff spot and Manny Machado in the two-hole. Roberts has batted .309/.367/.436 this spring and has a chance to move up in the order if he stays healthy and keeps hitting.