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04/11/2013 7:14 PM ET

Return in two weeks will be tough for Roberts

BOSTON -- Orioles second baseman Brian Roberts (right hamstring strain) is walking without a limp, but manager Buck Showalter said it will be "a challenge" for him to be ready within two weeks.

Roberts was placed on the disabled list April 5, so he could be available to the team as early as April 20, although it's unlikely he will return at that time. Roberts has yet to be cleared to start baseball activities while he rests and rehabs at the team's spring facility in Sarasota, Fla.

Ryan Flaherty has gotten the bulk of the playing time in place of Roberts, although Alexi Casilla started Thursday, with Showalter also getting outfielder Chris Dickerson into the lineup for the series finale in Boston. Nick Markakis served as designated hitter, a spot Showalter has said he will try to rotate around to help give the regulars a lighter day.

Tillman, Gonzalez laugh off fender bender in Boston

BOSTON -- Orioles pitchers Chris Tillman and Miguel Gonzalez's taxi got into a minor fender bender on the way to Fenway Park on Thursday afternoon. Both pitchers are fine and had a good time joking about the incident later, according to manager Buck Showalter.

"Somebody kind of bumped them from behind," he said. "They came in like they were whiplashed, both of them laying on the [training] table.

"They said the worst part of it was the 3-mile chase [after the woman that hit them]. Only Tilly. They had some fun with that."

Tillman started the Orioles' series finale Thursday, while Gonzalez is slated to pitch Friday's series opener in New York.

Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, and follow her on Twitter @britt_ghiroli. This story was not subject to the approval of Major League Baseball or its clubs.