The Minnesota Vikings placed quarterback Kirk Cousins on the COVID-19 reserve list on Friday, two days before their most important game of the season at Green Bay.

Cousins is unvaccinated. Even if he’s asymptomatic, he wouldn’t be able to return in time to face the Packers. The NFL recently reduced the required quarantine period to five days.

The Vikings (7-8) are one game out of the last wild-card spot in the NFC with two weeks to go. The Packers (12-3) are in control of the top seed and a first-round bye.

The Vikings also activated backup quarterback Sean Mannion from the COVID-19 reserve list, putting the seventh-year veteran in line to start at frigid Lambeau Field on Sunday night. Mannion started one game for the Los Angeles Rams in 2017 and one game for the Vikings in 2019, when Cousins was held out of the final regular-season game as a precaution prior to the playoffs.

Rookie Kellen Mond and recent addition Kyle Sloter are the other quarterbacks on Minnesota’s roster. When Mond tested positive in training camp, Cousins had to sit out five days as an unvaccinated close contact.