Swanson will start at shortstop and bat seventh Wednesday against the Nationals.
Despite going 2-for-4 with a pair of runs in Tuesday's 8-5 win to end a 1-for-20 skid at the plate, Swanson will remain in a bottom-third spot in the order for a third straight game. Swanson had been batting out of the No. 6 spot to close out August, but both Adam Duvall and Travis d'Arnaud have since moved ahead of him in the lineup.