When Fikayo Tomori walks back into Stamford Bridge on Wednesday night, he will have a point to prove, and not just to his former club Chelsea.
The 24-year-old centre-back will take his seat in the away dressing room before AC Milan's Champions League tie, fresh from winning the Scudetto [Serie A title] last season and following rave reviews from a club that has a rich history in the art of defending.
But seeing the England international's improvement since he moved to Italy leads to two questions: why did Chelsea let the academy graduate go in the first place, meaning they had to pay £70m for former Leicester defender Wesley Fofana this summer?