DeJong was activated off the COVID-19 injured list Sunday and is starting at shortstop and batting seventh against the Reds, Jeff Jones of the Belleville News-Democrat reports.
The 27-year-old was previously expected to be activated Monday, but he'll rejoin the team a day early after being sidelined all month following his positive test for COVID-19. DeJong went 4-for-17 with one home run in five games before the Cardinals' outbreak, and he should reclaim the everyday role at shortstop now that he's ready to go.