Chelsea's partying players crashed down to earth as West Brom took a deserved 3-0 win.
Saido Berahino's double ended his own nine-game drought as he made it 20 goals for the season for the Baggies.
Chris Brunt added a third to compound Chelsea's miserable night in the West Midlands as their 16-game unbeaten league run ended.
And Fabregas' first-half dismissal, for kicking the ball at an opponent, will go down as one of the most mindless in the history of the Premier League.
But which of the Blues stars impressed against Tony Pulis' men at The Hawthorns? You can have your say with our fans interactive player ratings.
All you have to do is give a mark out of 10 to each of the Chelsea players and the scores will automatically update so you can instantly see how your ratings are affecting the result.
And don't forget to keep checking back to see if other supporters agree with your assessment.