The Steelers placed receiver Diontae Johnson and center Kendrick Green on the Reserve/COVID-19 List on Thursday.
Johnson is the Steelers leading receiver with 100 receptions for 1,110 yards, his first 100 reception season and his first 1,000-yard receiving season of his career. Johnson, who has played in 15 games with 14 starts, also has a career-high eight touchdowns.
Green, the team's third-round pick in the 2021 NFL Draft, started the first 15 games on the season at center. He didn't play against the Browns on Monday night, active but sitting with a calf injury.
The team also restored defensive tackle Daniel Archibong to the practice squad. He was on the Practice Squad/COVID-19 List.
In addition to Johnson and Green, the Steelers placed cornerback Joe Haden on the Reserve/COVID-19 List on Wednesday. Haden has started 11 games this season, missing Week 2 with a groin injury and Weeks 11-14 with a foot injury. Defensive coordinator Keith Butler was also placed in the COVID-19 protocol on Wednesday.