The game was tight in it’s early stages, but a mistake at the back gave Eden Hazard a chance at the winger made no mistake, punishing Derby with this tidy finish.
Kurt Zouma was knocked out by Petr Cech at the end of the first half, and looked to be in serious trouble, but recovered after being taken off for Branislav Ivanovic.
Just when Derby were starting to get into the game, Chelsea looked to have killed off the tie with this stunning free kick form Filipe Luis.
But Derby fought back, and Craig Bryson fired home this powerful finish soon after.
Chelsea sealed their victory with a late Andre Schurrle strike, the German attacking swooping after Derby stopper Grant parried Loic Remy’s shot.