The Phillies have sent pitcher David Buchanan down to Triple-A and have called-up left-hander Cesar Jimenez.
Buchanan gave up 11 runs in 1 2/3 innings against the Diamondbacks on Tuesday.
Buchanan has struggled through 10 games this year, with a FIP of 5.30 (12th worst among pitchers with 40-plus innings pitched) and only 4.79 strikeouts per nine. Jimenez has posted a FIP of 3.63 and 6.28 strikeouts per nine in Triple-A this year.
Source: Jim Salisbury, Twitter