Reeder signed with the Rams on Thursday.
Reeder (knee) is listed as questionable ahead of Sunday's game against the Lions, Adam Grosbard of The Orange County Register reports.
Reeder, who suffered a knee injury in Sunday's win over the 49ers, is considered day-to-day, according to head coach Sean McVay, Jourdan Rodrigue of The Athletic reports.
Reeder sustained a knee injury in Sunday's game against the 49ers and is questionable to return.
Reeder has been signed to the Rams' active roster ahead of their season-opening game in Seattle, Mike Garafolo of NFL Network.
Reeder signed a deal with the Vikings on Wednesday, Lindsey Young and Craig Peters of the team's official site report.
Reeder signed a one-year contract with the Chargers on Saturday, Mike Kaye of The Newark Star-Ledger reports.
The Rams do not intend to tender Reeder as a restricted free agent, Ian Rapoport of NFL Network reports.
Coach Sean McVay said Friday that Reeder (ankle) is good to go for Sunday's divisional-round matchup with the Buccaneers, Jourdan Rodrigue of The Athletic reports.
Reeder (ankle) was limited at Thursday's practice, Adam Caplan of SiriusXM NFL Radio reports.