Kyle Kendrick was tagged for five runs in five innings Friday in a loss to the Nationals.
Michael Young was hitless in four at-bats in Friday and has just one RBI over his last 14 games.
Darin Ruf has been dealing with a sore hand at Triple-A Lehigh Valley.
Phillies transferred RHP Roy Halladay from the 15-day disabled list to the 60-day disabled list.
Mike Adams (back) will be activated from the disabled list on Sunday.
Chad Durbin sports a hideous 10.38 ERA in May.
Antonio Bastardo has a 2.35 ERA through 19 appearances despite a mediocre 1.43 WHIP.
Jeremy Horst has not carried over his success from 2012, posting a 5.09 ERA and 1.58 WHIP over 17 2/3 innings.
Phillies purchased the contract of INF/OF Michael Martinez from Triple-A Lehigh Valley.
Phillies placed 2B Chase Utley on the 15-day disabled list, retroactive to May 21, with a right oblique strain.
Phillies recalled RHP Michael Stutes from Triple-A Lehigh Valley.
Carlos Zambrano allowed one (unearned) run over four innings Thursday at extended spring training.
Darin Ruf could be called up this weekend.
Mike Adams (back) is scheduled to make an appearance in a minor league rehab game Monday.
Phillies optioned RHP Phillippe Aumont to Triple-A Lehigh Valley.