St. Brown (ankle) was ruled out for Sunday's game against the Seahawks, Eric Woodyard of ESPN.com reports.
St. Brown suffered a right ankle sprain Week 3 and will need to miss at least one game while he recovers, making his next chance to return Sunday, Oct. 9 at New England. Meanwhile, DJ Chark (ankle) is expected to suit up Sunday, while D'Andre Swift (shoulder) likely is out, per Tim Twentyman of the Lions' official site. In St. Brown's stead, both Josh Reynolds (ankle) and tight end T.J. Hockenson (foot) could benefit from increased target volume, as long as they're also cleared to play.