Triple-A Lehigh Valley outfielder Domonic Brown strained his left hamstring Wednesday. He is day to day. Brown is hitting .247 with six doubles, one triple, 11 RBIs and a .629 OPS in 24 games with the IronPigs.
Right-hander David Herndon, who is on the 15-day disabled list, has a strained pronator tendon. He is not throwing for three weeks.
Second baseman Chase Utley is scheduled to join the Phillies this weekend in Washington. It is possible Utley could then head to Clearwater, Fla., to begin his rehab.
Class A Clearwater left-hander Jesse Biddle, who was the team's first-round pick in the 2010 First-Year Player Draft, got hit with a line drive on his left forearm Tuesday. He left the game for precautionary reasons.
The Phillies named Double-A Reading first baseman Darin Ruf and right-hander Tyler Cloyd their Minor League Player and Pitcher of the Month, respectively.
Ruf, who was selected by the Phillies in the 20th round of the 2009 First-Year Player Draft, hit .378 with 31 hits in 23 games in April. Cloyd, selected in the 18th round in 2008, went 4-0 with a 1.45 ERA in five games with Triple-A Lehigh Valley and Reading.