Manchester United have been charged by the Football Association (FA) over misconduct of their players in the 2-0 defeat by runaway Premier League leaders Liverpool.

United's players surrounded referee Craig Pawson midway through the first-half on Sunday after Liverpool's Virgil van Dijk challenged goalkeeper David de Gea.

Roberto Firmino subsequently scored, but his goal was ruled out following a VAR review of Van Dijk's clash with the Spanish goalkeeper.

De Gea dropped the ball which the defence failed to clear allowing Firmino to take advantage and score.

"Manchester United FC has been charged with a breach of FA Rule E20(a)," read the FA statement.