Jamie Vardy was seen furiously arguing with referee Jon Moss after he was dismissed in the 56th minute, after Moss adjudged the striker to have dived under a challenge in the box from Angelo Ogbonna.
The FA announced on Monday:
“Leicester City’s Jamie Vardy has been charged with improper conduct for his behaviour following his second-half dismissal against West Ham United on Sunday 17 April 2016.
Leicester have also been charged for failing to control their players following the awarding of an 83rd-minute penalty to West Ham.
Both the player and the club have until 6 pm on Thursday 21 April 2016 to reply to their charge.”
The striker will have to serve a two-game rather than a mandatory one-match ban if the charges are sustained.
The ban would be a major blow for the Premier League leaders, who face Swansea, Manchester United, Everton and Chelsea in their pursuit of a first-ever top flight title.
Former Premier League chief referee Keith Hackett called it “the worst refereeing performance I have witnessed all season” in a blog written for website you-are-the-ref.com, calling Moss “totally inconsistent”.