Adrien Rabiot has made a "huge mistake" in asking to be removed from the standby list for France's World Cup squad, according to coach Didier Deschamps.
The Paris Saint-Germain midfielder, who has six caps, was overlooked for the main 23-man selection, with Sevilla's Steven N'Zonzi preferred instead.
Rabiot - who previously demonstrated a reluctance to adopt a more deep-lying role for his country - was included among Les Bleus' group of first reserves for the tournament in Russia, but the 23-year-old made a request in writing to be de-selected.
Speaking at a media conference on Wednesday, shortly after the French Football Federation had expressed its surprise and disappointment at the move, Deschamps shed further light on the situation.
"It was not a letter sent, it was an email that arrived Monday late afternoon," he said. "I became aware of its content. Of course, Adrien signed it.
"I called him to have a confirmation that it was he who had sent this email. He did not answer me. I got confirmation from my manager. In the process, I warned my president of the content. I also warned the president of PSG because he is a PSG player.
"I was surprised of course. I can understand the disappointment, the immense disappointment, but to take such a position ... we are talking about a young player who for a while was in the French group. He excludes himself from the team.
"I dare to hope that through some decisions like this it will allow him to mature, to reflect. I am convinced that he made a huge mistake in taking such a position.
"He refuses his status as a reservist, to follow a program, and if there was a problem of being called as a substitute. It is his decision he assumes."
France are considered among the favourites to win the World Cup and must first negotiate a group that pits them against Australia, Peru and Denmark.
|Mkhitaryan returning to Arsenal training next week|
|Leeds United pounce for Real Madrid goalkeeper Casilla|
|Watson lights up Gabba before power cut forces abandonment|
|Superb Serena blows Bouchard away|
|Tevez, Hulk, Oscar, Lavezzi - how the CSL stars Dembele is following to China fared|
|Thiem retires from Australian Open|
|Osaka ´not telling´ when it comes to injury niggle|
|Fabinho enjoying Klopp´s management style|
|Halep battles past Kenin in Melbourne|
|Hartley to miss England´s Six Nations opener|
|Dembele departs Spurs for Guangzhou R&F|
|Nacho convinced Isco remains important to Real Madrid|
|Warriors star Curry sets NBA record|
|Raonic survives four-hour marathon against Wawrinka|
|Osaka powers through to Aus Open third round|
|Irving dominates in Celtics´ win over Raptors|
|Irving called LeBron this week to apologise|
|Ajax star De Jong wants to resolve future ´quickly´|
|Payton on Rams CB Peters: I have great respect for him|
|Rockets star Harden matches Chamberlain with historic performances|
|Nishikori survives Karlovic test in Melbourne|
|Vieira reunion felt really weird - Henry|
|´#BetAgainstUs´ - Edelman and Pats embracing underdog status|
|Van der Vaart: Isco the best player in the world|
|I haven´t seen Guardiola or Klopp do that – Lampard unhappy with Bielsa|
|Real Madrid always play to win, insists Casemiro|
|Royals pitcher Skoglund suspended for 80 games after testing positive for PEDs|
|Ronaldo and Juve celebrate Supercoppa Italiana title with Mayweather|
|We are not going to talk about Morata - Simeone reluctant to discuss striker|
|Madrid weak in Leganes loss, says Solari|
|Bologna and Banvit seal Champions League play-off spots|
|LeBron James to miss Thunder & Rockets games but nearing practice return|
|Leganes 1 Real Madrid 0 (1-3 agg): Isco starts as Solari´s side go through despite defeat|
|NFL playoffs 2019: X-factor for each NFC team|
|Mahomes: Chiefs must not repeat mistakes against Patriots|
|Higuain´s Supercoppa benching due to virus, says Milan boss Gattuso|
|Brown fires back at Arians over ´diva´ comments|
|Stone heading home from West Indies tour with back injury|
|Shazier will continue rehab with intention of playing again|
|That´s why we signed him! Allegri hails Supercoppa match-winner Ronaldo|
|Monaco on worst home run in club´s history after Nice draw|
|Atletico Madrid 3 Girona 3 (4-4 agg): Simeone´s side out on away goals|
|Gregg Williams is Jets´ new defensive coordinator|
|Ronaldo: Supercoppa triumph just the start for Juve|
|Monaco confirm Batshuayi talks|
|You know more than me! Bielsa´s Barcelona research surprised Guardiola|
|Juventus 1 AC Milan 0: Ronaldo heads Bianconeri to Supercoppa glory|
|Kane injury cannot be excuse for Tottenham – Pochettino|
|Woods to open 2019 schedule at Torrey Pines|
|Reported Liverpool target Dabbur to undergo Sevilla medical|
|Lebanon v North Korea: Radulovic calls on players to make history|
|MLS MVP Martinez signs five-year contract with Atlanta|
|WBC set deadline for Wilder-Fury rematch|
|Iran 0 Iraq 0: Team Melli top Group D after dull draw|
|Vietnam 2 Yemen 0: Quang Hai shines to give Golden Dragons hope|
|Bielsa admits to spying on all Leeds´ opponents|
|Valverde open to arrivals amid De Jong tug-of-war|
|Sexton named in Ireland squad for Six Nations openers|
|Higuain benched for Supercoppa Italiana amid Chelsea links|
|De Grandhomme, Latham and Santner back in Black Caps squad|
|Oman v Turkmenistan: Verbeek tells players to ´score as many as possible´|
|Japan v Uzbekistan: Cuper not distracted by potential last-16 opponents|
|Brown desperate for England recall|
|Lowry ties course record in Abu Dhabi|
|James is playing for Bayern future – Kovac|
|Wizards can compete for playoffs in LeBron-less East despite injuries - Brooks|
|Kyrgyzstan 3 Philippines 1: Lux hat-trick gives White Falcons third-place hope|
|South Korea 2 China 0: Son sets the standard as Bento´s men take top spot|
|Saudi Arabia v Qatar: Top spot on the line in Group E|
|Wasps pull off Fekitoa coup|