Chelsea were really hard done by when referee Mike Dean showed Tiemoue Bakayoko two yellow cards in five minutes.
While the first one on 25 minutes was correct as he threw himself on to Etienne Capoue, the second - for a foul on Richarlison - was extremely harsh.
Bakayoko had not made another foul challenge following his caution and overstretched after a poor touch on 30 minutes.
He did catch the young Brazilian on the toe so it was a foul but there were far worse challenges in the half which Dean allowed without a yellow card.