The Phillies optioned Shugart to Triple-A Lehigh Valley on Sunday.
He'll give up his spot to right-hander Alan Rangel, who was recalled from Triple-A in a corresponding move. Over two stints in the majors this season, Shugart has logged a 4.93 ERA and 1.33 WHIP over 38.1 innings while making most of his appearances in lower-leverage spots.