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04/19/09 2:14 AM ET

Wieters' hamstring injury not serious

Catcher expected back in Triple-A lineup in a few days

The injury to Matt Wieters, Baltimore's top prospect, appears to be just as minor as first hoped.

Orioles director of player development David Stockstill told masnsports.com that Wieters could return to the Triple-A Norfolk lineup in three to four days.

"He has a mild hamstring strain," Stockstill said Saturday. "That came as good news to us and he should be back soon. We were confident when it happened last night it was not a worst-case scenario. He had tightness but it was not the worst pain."

Wieters left Friday's game against the Gwinnett Braves with cramping in his right hamstring. He singled in the first inning and pulled up, and the Tides pulled him for precautionary reasons.

Wieters, the fifth overall pick in the 2007 First-Year Player Draft, started his season 1-for-8 before heating up, now batting .292. The switch-hitting catcher was named Baseball America's Minor League Player of the Year in 2008 after hitting 27 home runs between two levels.

The Orioles wanted Wieters -- who has fewer than 500 professional at-bats -- to get a little experience at Norfolk before they promoted him to the Major Leagues. They expect to see him sometime before the All-Star break.

John Schlegel is a national reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.