There are several young players that have experience at senior international level and certainly provide plenty of hope for the future of their respective national sides.
By the time these players reach their so-called peak, Gareth Southgate and Didier Deschamps may have moved on with their careers, especially considering that one below-par performance in a major tournament for higher ranking national sides like France and England often warrants the axe.
Considering the previous success at the 2018 World Cup, the respective managers may want to keep a number of things the same. However, since France's triumph in 2018 and England's semi-final run, players that were not present in Russia have made names for themselves on big stages and the postponement of Euro 2020 may turn out to be a blessing to them.
From England's World Cup squad, Marcus Rashford and Trent Alexander-Arnold are the only players that are still classed as 'young players' while Kylian Mbappe is the only one from the French side. One player who is almost certain to be part of next year's Euro 2021 is Jadon Sancho, who has nailed his place in England side following fantastic performances for Borussia Dortmund. Even at the young age of 20, he has not looked out of place and has had a superb campaign for the Black and Yellows.
For France, Dayot Upamecano has caught the eye of the football world and the centre back, at the age of 21, he has been knocking on the door of the national side. Deschamps appears to prefer the likes of Presnel Kimpembe, Raphael Varane, Clement Lenglet and Kurt Zouma in his side. To give Upamecano the best chance of being part of France's Euro 2021 squad, he may need to move from RB Leipzig this summer and spend a full season at a club that is at the next level and a club where he probably will not look out of place at.