Cooper Kupp will undergo surgery on his ankle and be placed on injured reserve.
Sean McVay said the \"tightrope\" procedure that will be performed on Kupp typically has a recovery time of five to six weeks.
Kupp suffered the injury in the fourth quarter of Week 10.
The Los Angeles offense has depended on Kupp this season: Entering Week 10, Kupp accounted for 35.7% of the Rams\' catches this season, which is the highest mark by any player in the league.
