At least three NFL head coaches have been fined $100,000 for violating the league's rules that they wear face coverings on the sideline, a person with knowledge of the punishment told the Associated Press.

The person, who spoke on condition of anonymity because the league wasn't announcing specific fines, said Denver's Vic Fangio, San Francisco's Kyle Shanahan and Seattle's Pete Carroll were each docked $100,000. Their teams were fined $250,000 each.

More fines could be coming as several other coaches violated the league's rules requiring coaches to wear coverings over their mouths and noses at all times. Players are exempt from these protocols.

Among the violators were Patriots coach Bill Belichick and both coaches in Monday night's game, Jon Gruden of the Raiders and Sean Payton of the Saints.

The punishments come a week after the NFL warned all 32 teams in a memo about following the rules for wearing face coverings.

Following the Raiders' win over the Saints, Gruden, who last week said he felt the league's memo was directed at him, revealed he'd had COVID-19 and apologized for violating the rules.

"I'm doing my best," Gruden said. "I've had the virus. I'm doing my best. I'm very sensitive about it. I'm calling the plays. I apologize. If I get fined, I will have to pay the fine."

If the fines doled out so far, which were earlier reported by ESPN and NFL Network, prove ineffective, the league could hand out stronger discipline.

Etc.

• The 49ers confirmed that 2019 Defensive Rookie of the Year Nick Bosa and fellow starting defensive lineman Solomon Thomas had season-ending torn ACLs

• A major knee injury has ended New York Giants running back Saquon Barkley's season. The Giants said an MRI in a New York City hospital confirmed Barkley had torn his ACL.

• Panthers running back Christian McCaffrey is expected to miss four to six weeks with a high ankle sprain.