Everton have announced that new long-term deals have been signed by young trio Jonjoe Kenny, Dominic Calvert-Lewin and Mason Holgate.

Kenny and Holgate have committed to the Toffees until the summer of 2022, while forward Calvert-Lewin is now under contract until June 2023.

Manager Sam Allardyce is delighted to have tied down all three academy products, describing them as the future of Everton and backing each player to continue developing in the years to come.

"We're delighted that these young men have committed long-term to the club and there's no doubt in my mind that they will play big roles at Everton for a long time to come," he told the club's official website. "The depth of young talent in our squad is very encouraging, a clear sign that we do things right as a club in our development of young players and Mason, Jonjoe and Dominic epitomise what we are trying to accomplish with young players here at Everton.

"I've made the point before that Jonjoe's decision-making for such a young man is very impressive and part of the reason he makes the game look simple. He is also an excellent defender, very grounded as an individual and he has an innate desire to succeed. He's hungry and his choice of ball possession is first-class for a young man.

"He is an outstanding young man at full-back. For me, Mason Holgate's potential is becoming a reality. He has set his standards in these past number of games he's been involved in and it's a matter of him maintaining those standards, continuing to work hard on his game and then he can become a really top player in the Premier League.

"Dominic Calvert-Lewin, too, is a really exciting talent, he's improving all the time and he has the athleticism and attributes to become a top player in his position. Working so closely with a player like Wayne Rooney can't fail to help him in the role he plays in the team and, collectively, these three players will all have big parts to play here in the years ahead."

Everton have enjoyed a turnaround in fortunes since Allardyce arrived on Merseyside last month, winning four and drawing one of their last five matches.