Everton have confirmed new contracts have been signed by young trio Dominic Calvert-Lewin, Mason Holgate and Jonjoe Kenny.
The trio have all been heavily involved for the Toffees in all competitions this season, making 29 Premier League starts between them.
Calvert-Lewin, who had signed a new five-year contract in May, has agreed a further one-year extension that keeps him at Goodison Park until 2023.
Defenders Kenny and Holgate, meanwhile, have agreed new contracts that run to the end of June 2022, much to the delight of new Everton manager Sam Allardyce.
"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," said Allardyce.
"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."
A second new contract of the year caps a stunning 2017 for Calvert-Lewin, who scored the winning goal for England in their Under-20 World Cup final victory over Venezuela in June.
The 20-year-old, who has scored six goals in 28 Everton appearances in all competitions so far this season, praised the impact of Wayne Rooney on his rapid progress.
"It's an exciting time to be here and, for me, learning from players such as Wayne Rooney couldn't be better for my ongoing development,” said Calvert-Lewin.
"With a few other young lads also coming through at the moment, it's good because we're all pushing one another.
"I feel like I’ve improved a lot in a short space of time and I'm still looking to keep improving and getting better. That's what I’m working on day in, day out.
"It's nice to be rewarded and to be enjoying my football and it is a proud day for me and my family."
|NSW Origin hopeful Moylan pulls the strings for rampant Sharks|
|Champions League blunders will stay with Karius - Clemence|
|Warriors assuming Iguodala won´t play game seven, Kerr says|
|Lampard confirms Derby talks over vacant managerial position|
|French Open 2018: The science behind Nadal´s clay-court dominance explained|
|Walsh to continue as Bangladesh head coach|
|Bale makes emphatic point after Champions League omission|
|Casemiro: I bet Ronaldo stays at Madrid|
|Brewers pull away for blowout win over Mets|
|Warriors´ outburst sinks Rockets, forces game seven|
|MLS Review: Timbers win sixth straight, Techera scores hat-trick|
|It was like wrestling – Klopp unhappy with Ramos challenge on Salah|
|McKinnon says 49ers aiming to win Super Bowl this season|
|Choo makes history with walk-off home run, Rangers seeking ball|
|Shin-Soo Choo makes history with walk-off home run, Rangers seeking ball|
|Marcelo: I think Cristiano Ronaldo will stay at Real Madrid|
|Miller-Uibo shines as Semenya sets record in Eugene|
|Rose extends lead as Spieth slides|
|Prompt recovery, Salah – Ramos wishes Liverpool star well|
|Indians reliever Miller headed back to disabled list|
|Warriors´ Iguodala to miss game six against Rockets|
|I shouldn´t have done it – Ronaldo accepts future comments mistimed|
|Klopp: Liverpool behind Karius after Champions League horror show|
|Karius´ final blunders could destroy his career – Kahn|
|Zidane understands Bale frustration|
|Bale, Karius send Twitter into overdrive in action-packed Champions League final|
|Ronaldo: It should be called the CR7 Champions League|
|Zidane revels in Madrid´s third successive Champions League title|
|I lost Liverpool the game – Karius apologises for Champions League errors|
|Barcelona congratulate Champions League winners Real Madrid|
|Salah injury update: Egyptian FA calm World Cup fears|
|Ronaldo must stay with Madrid - Zidane|
|Champions League final player ratings: Bale stars as Karius shocker costs Liverpool|
|Cristiano is happy and will continue to be happy – Perez cools Ronaldo future talk|
|Win as a team, lose as a team - Liverpool captain Henderson not blaming Karius|
|Modric: Madrid have built dynasty like Bulls, Celtics and Lakers|
|Where would Cristiano go? - Benzema predicts Ronaldo stays at Madrid|
|We do not think about that - Zidane shrugs off Ronaldo exit talk|
|The divine right of kings: Zidane´s Real Madrid ride luck all the way to greatness|
|Klopp fears Salah will miss World Cup|
|Du Plessis returns, 17 uncapped players selected by South Africa|
|Bale demands playing time after Champions League heroics|
|Ramos: Ronaldo is indispensable to Real Madrid|
|It´s been beautiful to play for Real Madrid - Ronaldo hints at shock exit|
|Salah injury marked beginning of the end for Liverpool|
|Bale double makes Champions League history|
|Bale, Mandzukic & the best Champions League final goals|
|Real Madrid 3 Liverpool 1: Brilliant Bale undoes Klopp and calamity Karius|
|Jokanovic proud Fulham stuck to style in Wembley win|
|Real Madrid´s Carvajal limps out of final to prompt Spain fears|
|Broughton and Catalans continue fine form|
|Tearful Salah off injured in Champions League final|
|Leinster complete historic double by beating Scarlets|
|Lions snatch win from Stormers, Brumbies stun Bulls|
|Bale sits out warm-up ahead of Champions League final|
|Cavaliers´ Kevin Love ruled out of game seven|
|Pavlyuchenkova saves two match points to win Strasbourg epic|
|Benzema comparisons have made me stronger, says Giroud|
|Pakistan´s victory charge frustrated by Buttler and Bess|
|Aston Villa 0 Fulham 1: Cairney secures Premier League return|
|Isco preferred to Bale in Champions League final|
|Castres hold off Racing to book Top 14 final berth|
|McIlroy recovers late to share Wentworth lead with Molinari|
|Mancini perfect for new-look Italy, says Baselli|
|F1 Raceweek: Ricciardo set to vanquish Monaco demons|
|Goretzka confident over World Cup fitness|
|No pain, just cramp - Farrell allays injury fears|
|Sri Lanka to work with ICC after pitch-doctoring reports|
|Champions League Diary: Madrid fan´s brass act, Liverpool lap it up|
|FIFA dampens Platini´s ban reversal hopes|