The UEFA Champions League is the competition every club wants to play in.
Over the course of each domestic season, places are fought for not only to win trophies but also simply for the privilege of being able to feature in this behemoth of a tournament the following campaign. Clubs are competing among the very best, under the biggest spotlights and for the most enormous of financial and sporting rewards.
Here, we take a look at the brightest and best youngsters that each of the 22 clubs who are guaranteed participation in this season's Champions League have on their squad lists at this time.
Rather than look at potential youngsters to break through into the team this season, with a cap on the appearances numbers as we did with our Premier League version, this time we're keeping things far simpler: It's simply the best young talent, aged 21 or under.
Our reason for changing this is clear: Whereas young players might get game time here and there domestically, in the Champions League, it's almost certainly a full side put out every game by most teams, and those youngsters already have to be awesome to feature.
The players here are not ranked and teams feature in reverse UEFA coefficient order.