The Orioles today announced that they have placed OF Endy Chavez on the 15-day disabled list with a strained right hamstring, retroactive to June 13, and recalled INF Steve Tolleson from Triple-A Norfolk. Tolleson has batted .237/.275/.447 in 12 games for the Orioles this season. Chavez has batted .171/.202/.219 in 32 games for the Orioles this season. He was previously on the disabled list from May 9-29 with a strained left oblique.