Mason Mount has signed a new five-year Chelsea contract and will remain at the club for the start of the new season in the latest shift towards giving the club’s young players a first-team chance.

It is thought Mount’s new deal is worth a staggering £20million, around £77,000-a-week, indicating just how highly Chelsea rate the 20-year-old midfielder.

Having spent a successful season on loan at Derby County in the Championship under Frank Lampard, Mount will fight for a first-team place at Stamford Bridge.

Lampard has already told Mount he will be staying at Chelsea, rather than being loaned out again, and he has started pre-season well by scoring in the friendly victory over St Patrick’s at the weekend.

Mount, who won an England call-up last season, was part of Chelsea’s travelling party that flew to Japan on Monday for the club’s tour, which will see Lampard’s squad play games against Kawasaki Frontale and Barcelona.

On signing his new contract, Mount said: “It’s a massively proud moment for myself and my family. I joined this club at six years old and it was always my goal to play for the first team one day.

“I’m really looking forward to the coming season now and working hard to have an impact here at Chelsea. I’ve been at the club for a long time already and, hopefully, I’ll stay for a long time to come.”