
Receiver Adam Thielen became the sixth Vikings player in the past month to be isolated on the team's reserve/COVID-19 list, the team announced on Monday.
Thielen either tested positive or was in close contact with an infected person; based on NFL-NFLPA policy, teams don't announce individual positive cases.
But among the six players recently put on the Vikings' COVID-19 list, there have been two known positive cases, linebacker Todd Davis and guard Dru Samia. Only Thielen and Samia are on the list as of Monday afternoon.
Thielen, who is tested daily under NFL protocols, can still be cleared to return for Sunday's game against the Panthers. The NFL requires a minimum five-day quarantine for high-risk close contacts and asymptomatic cases, and at least 10 days for symptomatic cases. Players can return even sooner if they're not positive or deemed a "high-risk" close contact, as long as they test negative.
Three other players, including fullback C.J. Ham last week, have been put on the list and returned without missing game time. Samia and Davis missed at least one game.
Thielen leads the NFL with 11 touchdown catches after scoring twice in Sunday's 31-28 loss to the Cowboys.
Amid rising cases around the country, the NFL further enhanced its COVID protocols in a memo sent to teams on Monday. Starting this week, changes include masks required for everybody on sidelines during games, traveling parties cut down to 62 players and a limit on non-coaches and players allowed in team facilities while coaches and players are present.
Franchises must designate 70 employees as "Essential Football Personnel," who are allowed in team facilities with coaches and players throughout the rest of this season. An additional 25 employees, such as security, field care, food prep, can enter the building but must have "limited to not contact" with football personnel.