Diakite joined Chelsea as an Under-11 and has progressed through the Academy ranks at Cobham into a calm, commanding defender.

After signing his scholarship ahead of the 2025/26 campaign, he established himself as a regular starter for the Under-18s, making consistent contributions to the team’s performances.

The defender has made 22 Under-18 Premier League appearances so far this season, registering three assists in the league campaign, as the Blues currently sit top of the southern table.

During the current campaign, his performances earned him a call-up to our Under-21s, where he made his debut in a 5-0 Premier League 2 victory over Blackburn Rovers, under head coach Harry Hudson.

He has also made his UEFA Youth League debut, featuring in a 3-1 away win over Atalanta during the league stage, with Chelsea going on to top the standings after remaining unbeaten across those six matches.

Diakite has represented England at youth level. On his debut for England Under-17s in September 2025, he scored the winning goal against Israel, before captaining the side against the Faroe Islands during last month’s international break.

Congratulations, Calvin!