It was the ease with which Pierre-Emerick Aubameyang found the bottom corner at San Siro that stood out. There was no hesitation, his shot taken in stride. AC Milan goalkeeper Ciprian Tatarusanu threw out his left hand but it was a token gesture. The ball had already rippled the back of his net.
The goal was Aubameyang's third in as many matches – and its importance to Chelsea shouldn't be forgotten. After a poor start to their Champions League group, Graham Potter's side got themselves back on track by defeating Milan at Stamford Bridge, a game in which Aubameyang also found the net.
Yet that victory needed to be consolidated at San Siro against the Serie A champions. An early Jorginho penalty coupled with a Fikayo Tomori red card put Chelsea in control of the fixture but it was only after Aubameyang's clinical finish that the Blues could breathe easy. They were back in control of their own Champions League destiny.