Thomas Tuchel felt his Chelsea side "stopped defending" as they shipped four against Brentford at Stamford Bridge.
The west London derby was expected to be a routine home win but instead the relegation-threatened side grabbed a much needed three points. Antonio Rudiger had given the Blues the lead in the second-half before the Bees scored four - including three in the space on ten minutes.
Chelsea have been renowned for their defensive solidity since Tuchel arrived and had only conceded more than twice on one occasion in the Premier League this term. Vitaly Janelt grabbed a brace for Brentford whilst Christian Eriksen also got on the scoresheet.
