Jose Mourinho has been charged with misconduct by the Football Association for making comments about referee Anthony Taylor ahead of his Manchester United side's clash with Liverpool.
It is not the first incident involving Mourinho and Taylor, who sent the Portuguese to the stands during Chelsea's 4-1 win over Cardiff in October 2013.
Here, Press Association Sport reviews five more times Mourinho was in trouble with football's authorities.
Barcelona v CHELSEA, March 2005
Mourinho accused referee Anders Frisk and Barcelona manager Frank Rijkaard of meeting during the half-time interval of their Champions League last-16 first leg. Mourinho was labelled an ''enemy of referees'' and received a fine and a two-match ban but the consequences were more serious for the well-respected Frisk, who retired after receiving death threats.
INTER MILAN v Sampdoria, February 2010
His time in charge of Inter Milan saw Mourinho criticise Italian referees on several occasions. During a Serie A match against Sampdoria in February 2010, he made a handcuffs gesture towards a camera after two of his players had been sent off, earning him a three-match ban from the Italian Football Federation.
REAL MADRID v Barcelona, April 2011
Mourinho was sent off in the first leg of the Champions League semi-final for protesting against Madrid defender Pepe's red card, and then implied Barca were given special treatment by UEFA. His conduct earned the Portuguese a five-match ban from European football's governing body - his second touchline ban of the European campaign, having previously been sanctioned for apparently instructing Sergio Ramos and Xabi Alonso to deliberately pick up bookings .
Barcelona v REAL MADRID, August 2011
Mourinho became caught up in the enmity between Spanish football's great rivals and attracted further controversy after appearing to poke then- Barca assistant manager Tito Vilanova in the eye during Madrid's Supercopa defeat at the Nou Camp at the start of the season - earning himself a two-match touchline ban.
West Ham v CHELSEA, October 2015
After Chelsea imploded late in the first half, Mourinho was sent to the stands at West Ham for a half-time ''discussion'' with referee Jonathan Moss. With a suspended ban already hanging over him after an incident against Southampton earlier in the month, h e was handed a one-match stadium suspension and fined £ 40,000 after admitting an FA charge of misconduct.