And next Tuesday the referee for Cardiff v Aston Villa will be Chris Foy.
Marriner's appointment will raise some eyebrows when you realise he's sent off 5 players in his last three matches. In total he's sent off 10 players this season in 26 matches. He's issued 88 yellow cards including 10 in one game between Chelsea and West Brom.
The potentoial volatilty of Saturday's derby could see a few more cards being dished out.
Next Tuesday Chris Foy is in charge of the Cardiff v Aston Villa match. Foy's last Cardiff game was the 2 - 2 draw at Cardiff City Stadium v Sunderland on December 28th.
Foy has not been quite as card happy as Marriner with 57 yellow and 4 red in 22 games.