The Phillies activated Mark Leiter from the 10-day disabled list before their 4-1 win over the Orioles Wednesday. After the game, they optioned him to Triple-A Lehigh Valley. He had done well in a rehab assignment coming back from a right forearm strain, but the team had to make room in their bullpen.
Scott Lauber of Philly.com reports that either Victor Arano or Adam Morgan will come off the disabled list to replace Leiter. Morgan went on the disabled list May 7 with a back strain, while Arano has been out since April 29 with a rotator cuff strain.