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."
|Football needs people like Arsene - Pires keen for Wenger return|
|Abbas five-for torments woeful Australia as Pakistan take control|
|Henry: Wenger and Guardiola inspirations for my coaching career|
|Pires backs Henry and Vieira for Ligue 1 success|
|Bolt rejects Valletta offer|
|Wenger ready for January return to management – but where?|
|NBA 2018-19: The LeBron James effect on teams he has joined|
|Svitolina qualifies for WTA Finals after Pliskova loses|
|Genoa will sell ´superstar´ Piatek, admits president|
|Moutinho targets European qualification with Wolves|
|Embiid: 76ers-Celtics isn´t a rivalry, they always kick our a**|
|Vinicius ´calm´ as he waits for Real Madrid chance|
|Nothing else to say - Ramos posts clip of supposed Sterling stamp|
|Chiellini joins Mind the Gap campaign to help players prepare for retirement|
|Injured Kusal Perera replaced by Kusal Mendis in Sri Lanka squad|
|Big names return for Scotland´s November Tests|
|Essien tells Loftus-Cheek to stay and fight for Chelsea chance|
|Nainggolan relishing challenge of first Milan derby|
|Curry: Slap me if I tire of championship celebrations|
|Sevilla don´t fear Messi or Barca – Kjaer|
|Low: Dropped Muller is still very important for Germany|
|Hayward put ´dark memories´ behind him with Celtics return|
|I hope I´m in Klopp´s good books! - Koeman jokes after resting Wijnaldum|
|Rested Fellaini should be fit for Manchester United, says Martinez|
|France´s mentality must be right - Lloris|
|Bellinger seals dramatic win as Dodgers level up NLCS|
|Curry, Durant lead Warriors past Thunder|
|Kjaer surprised by LaLiga-leading Sevilla as Machin´s men remain grounded|
|A-League preview: Honda the big arrival as fascinating season awaits|
|Mexico 0 Chile 1: Sanchez helps La Roja to late win|
|Celtics too good for 76ers in NBA opener|
|United States 1 Peru 1: Flores salvages late draw for visitors|
|Martinez not worried about Belgium depth|
|Red Sox move ahead of Astros in ALCS|
|Depay ´a joy to watch´, says Koeman|
|Timberwolves owner looking to trade Butler, backs Thibodeau|
|Shepard says Giants have ´total faith´ in Manning|
|Hazard is out of this world – De Ligt enjoys Belgium test|
|Tite: Brazil were better than Argentina|
|Foley eyes World Cup after re-signing with Wallabies, Waratahs|
|Low slams decisive France penalty call|
|I fined him for his goal at Old Trafford! Giggs delighted for Wales hero Wilson|
|Matuidi lauds Deschamps´ tactical nous after Germany win|
|Scaloni excited by Argentina despite Brazil loss|
|Tsonga back in business, Dzumhur dumped out in Moscow|
|Germany suffer six defeats in a year for first time|
|Many clubs have asked about Piatek - agent|
|Bartomeu: Barca open to defensive reinforcements after Vermaelen injury|
|Bonn spoil PAOK´s landmark European game|
|Konta conquers Mertens in Moscow|
|Republic of Ireland 0 Wales 1: Wilson stunner moves Giggs´ side top|
|France 2 Germany 1: Griezmann delivers Low blow as Les Bleus reign in Paris|
|Belgium 1 Netherlands 1: Groeneveld cancels out Mertens strike|
|Argentina 0 Brazil 1: Miranda heads late winner after rivalry fails to ignite|
|Messi would struggle in this Manchester United team – Scholes|
|Falcons place Devonta Freeman on injured reserve|
|Westbrook ruled out of Thunder opener|
|Wilder´s team open to Joshua talks|
|Brentford appoint Thomas Frank as new head coach|
|England´s perfect performance sets the standard - Trippier|
|Odell Beckham Jr. needs to create headlines on the field, says Giants owner|
|Robshaw joins list of England absentees|
|Chile need goals from Sanchez despite United form - Rueda|
|Modric reveals Ronaldo respect, ´will never play with´ Messi|
|Osaka can be one of the greats, says coach Sascha Bajin|
|Liverpool´s Naby Keita carried off injured in Guinea match|
|Duminy to miss Australia tour for shoulder surgery|
|F1 Raceweek: Ferrari ready to ´challenge the impossible´ as Hamilton nears title|
|Umesh replaces injured Thakur in ODI squad|
|IAAF delay implementation of testosterone ruling amid Semenya challenge|