"It's coming along well," Beckham said of his rehab, which has mainly been at the Orioles' Spring Training complex in Sarasota, Fla.
Beckham was hitting .179 with a home run and four RBIs in 23 games before landing on the DL April 25.
"I feel like I'm on schedule," Beckham said. "Everything's been going well in the rehab. Just taking it day by day and keep pushing it."
Rasmus begins rehab assignment Outfielder Colby Rasmus, who has been on the 10-day disabled list since April 7 with a left hip flexor strain, was scheduled to begin a rehab assignment at Double-A Bowie on Friday, and closer Zach Britton was also scheduled to throw his second rehab inning at Bowie.
Rasmus was just 2-for-21 (.095) in eight games with the Orioles before he was placed on the DL.