Chelsea stormed past Borussia Dortmund to make the quarter-finals of the Champions League with a display that could give Graham Potter's reign lift-off. Trailing 1-0 after the first-leg, Chelsea spurned a host of chances in the first 45 but crucially went ahead through Raheem Sterling before half-time. And Kai Havertz's retaken penalty on 53 minutes was enough to give them a 2-1 aggregate win.