Pittsburgh Steelers head coach Mike Tomlin has tested positive for COVID-19.

According to NFL Network's Ian Rapoport, Tomlin has been away from the team facility since being diagnosed, and he was not the only member of Pittsburgh's staff to be sent home after testing positive last week.

The Steelers had at least three players test positive for COVID-19 during the recent NFL season. In late November, running back James Conner contracted the coronavirus, which caused him to miss his team's Week 12 win over the Baltimore Ravens.

Cornerback Joe Haden was held out of the regular-season finale against the Cleveland Browns after testing positive.

Earlier in the season, Steelers' tight end Vance McDonald tested positive for COVID-19 on the Monday morning of Nov. 9 — one day after the Steelers faced the Dallas Cowboys. McDonald traveled with the team and played that Sunday, despite the fact that he had begun to feel ill on the Friday prior, following a Steelers staffer testing positive.

After the tight end's positive test, Tomlin fired back at those questioning the decision to let McDonald join the team for the Texas trip.

“You know, those aren’t decisions that are made by us,” Tomlin said, via Chris Adamski of the Tribune-Review. “It’s really cut and dry. It’s all in the procedural policy of COVID established in New York by the NFL. As long as he is negative and not showing signs of COVID, he’s able to travel, and [McDonald] was and we did.”

Tomlin represents the most high-profile NFL player or coach known to have tested positive for COVID-19 since Super Bowl LV on Feb. 7.