Frustrations continue on the road for Thomas Frank and his Brentford side this season. This was a seventh defeat in eight away from home, and unless that record starts to improve the Bees are going to remain well outside the European conversation. They didn't create a great deal going forward tonight until changes late on, with substitutes Vitaly Janelt and Fabio Carvalho coming close. Another sub Kevin Schade created Bryan Mbeumo's 10th league goal of the season, but in the end it was all too little too late. Chelsea were the better side tonight and Brentford can have few complaints at this result.