Lukes is out of the lineup for Sunday's game against the Cardinals.
The left-handed hitter will stay on the bench for a second straight game while the Cardinals send another lefty to the bump in Matthew Liberatore. Myles Straw will pick up a start in right field in place of Lukes, who is slashing just .227/.306/.295 with no home runs, stolen bases or RBI and just five runs in 14 games since the All-Star break.