Ryan Mason has revealed he had "no option" but to retire following the head injury he sustained at Chelsea in January 2017.
Hull City midfielder Mason announced his retirement on Tuesday, having been advised that a return to competitive action would be against his best interests.
The 26-year-old fractured his skull in a clash of heads with Gary Cahill at Stamford Bridge, requiring surgery, and previously claimed that he felt "lucky to be alive" after the incident.
"I can confirm that following specialist medical advice I am having to retire from playing professional football," Mason said in a statement.
"I have worked tirelessly in order to be able to return to the pitch. Unfortunately, having taken expert medical advice I now have no option but to retire due to the risks involved given the nature of my injury.
"I am and always will be eternally grateful for the incredible network of people around me who have helped me to recover from what was a life-threatening injury in January 2017.
"Thank you to my amazing fiance, Rachel, who has been by my side and lived every single day with me since the injury, helping to give me the strength I've needed no matter how tough things got.
"We are so lucky to have now become the proud parents of our perfect baby boy George."
Mason is a product of the Tottenham youth system and won his only England cap against Italy in March 2015 before departing for Hull in the August of the following year.
"I am so proud to have come through the ranks to play for my club, the club I love," he added. "To have had the honour of captaining the team fills me with immense pride.
"Representing my country is an honour that nobody can ever take away from me and something that I am so proud to have achieved.
"I'm retiring from the game with my head held high having done everything in my power over these past 13 months to have given myself every opportunity to return to the pitch.
"I love the game, I always will and I am excited to see where football will take me next."
|Dodgers on cusp of World Series after beating Brewers|
|Mata braced for ´difficult month´ at Man United|
|WATCH: Rooney scores wonderful free-kick for DC United|
|Kaino handed five-week ban for striking Roberts|
|Bears star Khalil Mack ´day-to-day´ with ankle injury|
|Anthony has ´a clearer understanding´ of his role with Rockets|
|Brewers remove Miley after one batter against Dodgers|
|Rams rule out Kupp for 49ers game|
|Giants owner Mara to talk with Beckham Jr|
|Bamberg battle back to claim Champions League win|
|MLB investigated alleged Astros sign stealing, found no wrongdoing|
|Timberwolves star Wiggins to donate $22 for every point this NBA season|
|Red Sox´s Sale won´t start game five of ALCS|
|Tsitsipas and Shapovalov advance at Stockholm Open|
|Witsel to Dortmund is signing of the season - Martinez|
|Pique confident Nadal will play in 2019 Davis Cup|
|Seeds suffer in Moscow and Luxembourg|
|Johnstone grabs hat-trick as England ease past France|
|Pogba and Mourinho disagreement over Instagram video, confirms Pereira|
|Nuggets coach Malone signs contract extension|
|Mayweather accepts Khabib´s challenge: ´We´re fighting´|
|Slovenia sack Kavcic as head coach|
|Morgan and Rashid star as England win rain-reduced ODI in Sri Lanka|
|Romagnoli aims to make Gattuso proud in Milan derby|
|Naldo signs Schalke extension|
|Bills to start quarterback Anderson against Colts with Allen out|
|O´Sullivan makes 147 at ´hellhole´|
|Barcelona know when captain Messi is angry – Abidal|
|Bertens loss hands Pliskova last WTA Finals berth|
|Liverpool star Mane undergoes hand surgery|
|F1 Raceweek: Happy hunting ground for title-chasing Hamilton - US GP in numbers|
|Canelo signs record-breaking DAZN deal|
|England hit by another Vunipola injury absence|
|Gruden: Oakland Raiders ´aren´t tanking´|
|Chiesa focused and happy at Fiorentina|
|We´ll see what´s possible - Henry not limiting Monaco´s ambitions|
|Wembley sale off after Khan offer withdrawn|
|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|