The Orioles today announced that they have placed outfielder Nolan Reimold on the 15-day disabled list, retroactive to May 1, with a herniated disc and recalled catcher Luis Exposito from Triple-A Norfolk. Reimold, 28, is batting .313/.333/.627 in 16 games this season. He had a career and team season-high 14-game hitting streak, April 7-29. Exposito, 28, was claimed on waivers from Boson on April 17. He batted .310/.356/.429 in 10 games with the Tides this season and will be making his Major League debut.