The teenager has been a mainstay in Andy Myers’s side, who remain unbeaten in Premier League 2 and sit at the top of the table after 18 matches. Defender Maatsen, still eligible to play for the Under-18s, most recently captained the side to victory at Stamford Bridge in the FA Youth Cup win over Millwall.

‘I’m very happy to have signed a new contract at this club,' he told the official Chelsea website after putting pen to paper on a new deal that runs until at least summer 2024. 'The journey continues and I already can’t wait to get the next season started once we have finished this one.'

Maatsen made his debut at Stamford Bridge in the 7-1 win over Grimsby in the Carabao Cup tie in September.

‘I’m properly settled here at Chelsea,’ the 17-year-old admitted. ‘I have good houseparents [who he lives with], good team-mates and friends here. My language is good now – I’m really settled.

‘The season for me has been quite good. In the Academy, we were unlucky to not progress in the UEFA Youth League but I was very happy to make my first team debut. Next season I have to keep pushing and give the same performances.