High-A West Michigan placed McGonigle on its injured list Monday with a hamate fracture of his right hand.
McGonigle is a left-handed hitter, but since the injury is to his throwing hand, he may not be cleared to return to game action before West Michigan's season ends Sept. 8. The shortstop has acquitted himself well as a 19-year-old in the Midwest League this season, slashing .214/.368/.357 with a home run and two stolen bases over 57 plate appearances since receiving a promotion from Single-A Lakeland shortly after the All-Star break.