Lewis was used as a pinch-hitter in the eighth inning of Wednesday's 8-1 loss and stayed in the game in right field. He singled in three at-bats in Thursday's 4-2 defeat.
Blue Jays manager Cito Gaston went with a mostly right-handed-hitting lineup against left-handed starter Derek Holland, but Lewis started in right field with DeWayne Wise in center and Travis Snider in left against Colby Lewis. Usual center fielder Vernon Wells was at designated hitter.
Adam Lind, who often starts at DH, was not in the lineup.
"Just to give [Wells] some time off his legs," Gaston said. "And Lind has got a night off."