Rice was injured midway through the second quarter against the Rams when diving for a touchdown pass.
The Seahawks passing game has been a weak spot for the team even as they’ve gotten off to a 7-1 start, the best in franchise history. Seattle is averaging just 199 yards per game, 28th out of 32 teams, and was held to just 91 yards against St. Louis, 80 of which came on a long touchdown pass to Golden Tate.
On Wednesday, the Seahawks promoted wide receiver Ricardo Lockette to the active roster from the practice squad to fill Rice's spot. Lockette appeared in the Seahawks final two games of the 2011 season and has spent time on the San Francisco 49ers and Chicago Bears’ practice squads in the interim.
Rice’s injury means the Seahawks are now even more eager for the return of wide receiver Percy Harvin, who was traded to the team from the Minnesota Vikings during the offseason but has yet to play due to hip surgery in August. Harvin practiced on a limited basis with the team last week but has yet to be moved to the active roster. His return is ahead of schedule but the timetable for his season debut remains unclear.
In the meantime, Seattle will have to make due with their group of healthy receivers: Golden Tate, Doug Baldwin, Jermaine Kearse, and Bryan Walters. The Seahawks host the winless Tampa Bay Buccaneers on Sunday.