Graham Potter's team selection paid off to perfection as Chelsea cruised past AC Milan with a 3-0 win at Stamford Bridge on Wednesday night.
The Blues leapfrogged their Italian opponents in their Champions League group with a dominant home victory as they proved a constant threat on the counter attack. Meanwhile, their five-man defence limited the threat posed by the exciting Rafael Leao and the rest of the Milan frontline, even after Wesley Fofana was forced off through injury before half-time.
Here are the three things that Potter got right as he extended his unbeaten start to life as Chelsea manager.
Switching to three centre-backs
After trialling both 4-2-3-1 and 4-3-1-2 formations in his opening two matches as Chelsea boss, Potter switched to a three-man defence on Wednesday night. The change allowed him to start Fofana and Kalidou Koulibaly either side of Thiago Silva.