Chelsea have signed a four-year-deal with 19-year-old goalkeeper, Jamie Cumming.
Cumming signed the new deal on Wednesday after agreeing on personal terms with the club.
The England youngster will remain at Stamford Bridge until at least 2023.
"It's brilliant news, a very proud moment for me and my family," Cumming told Chelsea's official website after putting pen to paper at Cobham.
"I've been here since the age of eight so to sign a new contract that keeps me here until I'm 23 is a great achievement. I'm now really looking forward to the new season," he said.
A statement from Chelsea read: "Goalkeeper Jamie Cumming has signed a new Chelsea contract having being involved in training and matches throughout pre-season for Frank Lampard's side.
"The teenager has been at the club since the age of eight and featured in both Dublin friendlies as well as our most recent outing away at Reading. After being confirmed as our third-choice keeper for the coming campaign, he has now committed himself to the Blues until at least 2023."