General manager Neal Huntington didn't indicate Musgrove was suffering a health issue when asked during his Sunday radio show on 93.7 The Fan.
"We haven't made some plays behind him ... he feels like he's ready to get back on track and be Joe Musgrove again his next time out," Huntington said. Musgrove underwent offseason hernia surgery but got off to a tremendous April start with Pittsburgh. He's surrendered 13 earned runs in 5.2 innings over his last two starts and walked a career-high five batters May 9.