West Brom manager Slaven Bilic has been charged with improper conduct by the English FA.
Bilic came onto the half-time in the Baggies 5-2 defeat to Everton on Saturday and was shown a red card by referee Mike Dean for his protests.
The West Brom manager was unhappy with Dean's decision to send Kieran Gibbs off for striking Everton's James Rodriguez towards the end of the first half at Goodison Park.
"Slaven Bilic has been charged with a breach of FA Rule E3," an FA statement read.
"It is alleged that the West Bromwich Albion FC manager's language and/or behaviour on the field of play at half-time of the Premier League fixture against Everton amounts to improper conduct.
"Slaven Bilic has until 24/09/20 to provide a response."
A goal and a red card to finish off the half, it's all gone wrong for West Brom!
Slaven Bilic vents his frustrations at Mike Dean 😡 pic.twitter.com/2GBqEsnHqv
— Football on BT Sport (@btsportfootball) September 19, 2020
Bilic said after the game: "As a manager I should be in a situation to ask the referee what's going on.
"It's not like the game was going on, it was half-time - nobody was around. I didn't swear.
"I asked him in a frustrated way but I didn't go over the line. But he just ignored me and gave me red.
"As a manager you have that right if you are not crossing the line. I told him if you want to kill us, kill us. That's all."