Phillies prospect Mark Appel, the former No. 1 overall Draft pick who is currently rated the club's No. 4 prospect and the No. 65 prospect in the Major Leagues by MLBPipeline.com, was placed on the disabled list Friday with a right shoulder strain.
In a corresponding move, Phillies No. 30 prospect Ben Lively was promoted to Triple-A Lehigh Valley from Double-A Reading, where he was 7-0 with a 1.87 ERA in nine starts for the Fightin Phils. Lively, who was acquired from the Reds for Marlon Byrd during the offseason, held Eastern League hitters to a .185 average, striking out 49 in 53 innings while walking 15 and posting a 0.94 WHIP.
Appel, whose fastball normally reaches the mid-90s, suffered from a significant drop in velocity in his last start, struggling to hit 90 mph on Sunday for Lehigh Valley.
The 24-year-old is 3-3 with a 4.46 ERA in eight starts at Triple-A this season, with 34 strikeouts in 38 1/3 innings.
David Adler is a reporter for MLB.com based in New York. Follow him on Twitter at @_dadler. This story was not subject to the approval of Major League Baseball or its clubs.