Stewart is out of the lineup for Sunday's game against the Cardinals.
Stewart will receive his first day off this season after drawing starts in 103 straight games. The 22-year-old remains one of the leading contenders for the National League Rookie of the Year Award, but he's lost some momentum coming out of the All-Star break with a .188/.200/.406 slash line over the last eight games. With Stewart getting a breather, Ke'Bryan Hayes will pick up a start at third base in the series finale in St. Louis.