Cleveland Browns star Nick Chubb's status for Week 10 is up in the air after the team placed him on the reserve/COVID-19 list on Tuesday.
Per ESPN's Jake Trotter, Chubb is vaccinated. League rules permit asymptomatic players to return as long as they return to negative COVID-19 tests 24 hours apart.
Chubb was setting a blistering pace to open the 2021 season. He had run for 523 yards and four touchdowns while averaging 5.8 carries through Cleveland's first five games.
Then a calf injury forced him to miss Cleveland's 37-14 defeat to the Arizona Cardinals in Week 6 and its 17-14 win over the Denver Broncos in Week 7.