Paul Pogba will miss France's World Cup campaign, the Juventus midfielder's agent has confirmed.

The 29-year-old, who was a member of Didier Deschamps' triumphant squad at Russia 2018, had been expected to figure once more for Les Bleus if fit.

But having returned to Turin from Manchester United during the close season, Pogba has struggled with a knee injury, with delayed surgery keeping him stuck on the sidelines.

Now, the player's agent Rafaela Pimenta says he will not return to either domestic duty with Juventus, nor make the plane to Qatar with France, in what is one of the biggest injury blows ahead of the tournament.

"Following yesterday and today's medical review in Torino and Pittsburgh, it is extremely painful to [say] Paul Pogba will still need recovery time from his surgery," Pimenta told Telefoot on Monday.

"For this reason, Paul will not be able to join [the] Juventus squad before the World Cup break, nor the French national team in Qatar. If wishful thinking would change things, Paul would be playing tomorrow.

"But what changes things are hard work, resilience and discipline, all of which are the only things in Paul's mind [during] these challenging times.

"Paul will continue working [and] giving his very best to be back on the pitch for the fans and his team as soon as possible."

Less than three weeks out from the World Cup, Juventus also provided an update on the fitness of injured United States midfielder Weston McKennie.

"Weston McKennie underwent radiological examinations at J|Medical which showed muscular overload in the rectus femoris of the right thigh," the statement read. "His condition will be evaluated daily."

France begin their World Cup defence against Australia on November 22, before facing Denmark and Tunisia in their other two Group D matches.