ATLANTA — In keeping with the promise of bullpen tryouts, the Phillies will add two more unproven arms from the minors for September looks.
Lefthander Jake Diekman and righthander Justin De Fratus were both recalled from triple-A Lehigh Valley and will be available Sunday. That puts the Phillies' active roster at 28.
The IronPigs were eliminated from postseason contention Saturday, thus the Phillies started digging into their team.
Both Diekman and De Fratus have major-league experience. Diekman, 25, pitched in 23 games earlier this season until control issues dictated a demotion. De Fratus, 24, appeared in five games last September and was expected to play a role in 2012 until elbow problems derailed much of his season.