Graham Potter made a telling call on Wednesday evening in the first half of the 3-0 win over AC Milan. As Wesley Fofana was helped off by Chelsea's medical staff, almost in tears at what appeared another injury setback following his first goal for the club, Trevoh Chalobah was selected to replace the £68m summer signing.
In the previous Champions League game against Red Bull Salzburg, Potter had gone with Cesar Azpilicueta on the right side of his back-three, citing players who knew Chelsea the best in the reasoning for selecting the 33-year-old.
A logical reason for any new coach getting to know his new group of players, but a logic that showed its flaws when the ageing defender struggled to make up ground to cut out Noah Okafor's equaliser for the visitors to deny Potter his first win later that night.
