SEATTLE -- The Rams placed star defensive end Robert Quinn and third-down running back Benny Cunningham on injured reserve Thursday, officially ending their seasons hours before taking on the Seattle Seahawks at CenturyLink Field.
In a corresponding move, offensive lineman David Arkin and defensive lineman Morgan Fox were promoted from the practice squad.
Quinn, the No. 14 overall pick in 2011 who racked up 40 sacks and made two trips to the Pro Bowl from 2012 to '14, has been limited to only 15 starts over the last two years.