Why is Mike Dean so card happy?

Referee Mike Dean found himself the centre of attention once again after sending off West Ham’s Sofiane Feghouli against Manchester United on Monday.

The Hammers have appealed against the 15th-minute dismissal, which came after Feghouli and Phil Jones both lunged into a 50-50 challenge.

It was the fifth Premier League red card Dean has shown this season and his 25th since the start of the 2013-14 season, in both cases the highest tally in the league.