Bour is in the lineup Thursday, hitting seventh and playing first base, Joe Frisaro of MLB.com reports.
It's promising that Bour is not riding the pine with a left-handed pitcher, the Nationals' Gio Gonzalez, taking the hill. Bour has power for days but failed to leave the yard against a southpaw in 30 at-bats last year. This assignment, however, may signal that the Marlins want to expose him more to lefties in order to facilitate his growth.