The fines reportedly stem from head coach Jon Gruden’s failure to wear a mask, along with other infractions.

The NFL will reportedly fine both the Raiders and head coach Jon Gruden for violating the league’s COVID-19 protocols, as well as strip the team of a sixth-round draft pick, according to Yahoo’s Charles Robinson. The punishments are related to offensive tackle Trent Brown’s positive test from October.

The Raiders will be fined $500,000, while Gruden will pay $150,000.

According to ESPN’s Adam Schefter and Kimberly A. Martin, among the violations by the Raiders include Gruden’s failure to consistently wear a mask. Raiders players also attended a large indoor gathering and the team allowed an unauthorized person into the locker room after a game.

Brown returned to the reserve/COVID-19 list earlier on Thursday due to lingering effects from the virus, according to Sports Illustrated‘s Albert Breer. He is unlikely to play in Sunday’s game against the Chargers.

Brown