Orioles second baseman Brian Roberts, who is slated to begin a minor league rehab assignment Tuesday at Triple-A Norfolk, hopes his stay there is a short one. Roberts hasn't played in a game since the third game of the regular season, when he injured his right hamstring sliding on a successful stolen base attempt. "Obviously, there will be a lot of factors that play into it," Roberts said. "But to be brutally honest, I don't want to be there long. As soon as I'm ready I'm going to call them and say I'm good. I don't know if that's three days or 10 days, but hopefully not the latter." Realistically, Roberts — who has been limited to 118 games over the past four seasons because of various injuries — said he believes his stay will be between three games and a week. For the past two weeks, Roberts has continued his rehab from May 9 hamstring surgery with the team. In recent days, he's been a full participant in pregame batting practice activities, both hitting and fielding. Now all that's left is getting in games and getting at-bats. "It's been a lot longer road than I thought initially," Roberts said. "There were some discouraging days, but nothing I haven't been through in the past. I'm excited. Being with the team and watching and being a part of it is awesome, but at the same time being on the sidelines is no fun. I'm excited to get back in and be a part of what's going on. I think we have a great chance of doing something special." Orioles manager Buck Showalter said he will lean on Roberts to know when he's ready to return to the active roster. Special assistant Terry Crowley will supervise Roberts' rehab assignment. "I think some of it will be how you feel in the box and obviously the big thing is how you feel moving around," Roberts said. "Are you getting your legs under you? Are you explosive enough to do what you need to do?