They made headlines last month with the way they surrounded the referee which led to Paris Saint-Germain striker Zlatan Ibrahimovic being red carded.
Now a data compiled by Football Association Fair Play has revealed that Chelsea are the worst behaved team when it comes to disrespecting referees in the English Premier League.
Delegates who attend every league game, assess team behaviour towards match officials and the official number released show Jose Mourinho led club's poor attitude towards match officials.
The numbers as reported by Daily Telegraph, reveal that Liverpool are the most respectful to match officials followed by Burnley and West Brom.
Arsenal are third most disrespectful clubs in the English Premier League, Manchester United, 12 while Manchester City are 15th .
See the full list below of most disrespectful clubs in the EPL
Chelsea
Sunderland
Arsenal
Stoke City
Aston Villa
Hull City
Tottenham Hotspur
Swansea City
Leicester City
Southampton
Everton
Manchester United
Queens Park Rangers
Newcastle United
Manchester City
Crystal Palace
West Ham United
West Bromwich Albion
Burnley
Liverpool