Waller becomes the 12th player to be placed on injured reserve by the Ravens, which ranks second in the NFL to the Pittsburgh Steelers (14). The Ravens' total of IR players more than doubles 20 other teams. It's also doubles the league average of 5.5.
The Ravens ranked seventh in the NFL last season with 19 players on IR, and Baltimore has a good chance of surpassing that total because the season is just reaching the midway point. The New York Giants led the league last season with 26 players on IR.
Baltimore's total could decrease if defensive end Brent Urban returns. He is on the designated for return list.
The Ravens promoted undrafted rookie offensive tackle De'Ondre Wesley to the active roster to fill Waller's spot. Baltimore needs depth at offensive tackle because starting left tackle Eugene Monroe was forced out of Monday's game with a shoulder injury.