Ranking the best U-21 players in the world this season 

#1 Trent Alexander Arnold (Liverpool)

TAA has come of age this season

The Liverpool starlet has been no less than sensational this campaign. His reputation has soared high since he got promoted to the Red's first team. He had endured some difficulties in his debut season due to the competition from Nathaniel Clyne, making just 18 appearances as a starter.

Fortunately, Arnold had a golden opportunity to cement his place in the team after Clyne suffered a lengthy injury. He did not waste the chance and quickly became Klopp's most reliable player at the right back as he left Clyne with no place to come back.

A pacey fullback who is equipped with a superb vision, Arnold racked up massive 13 assists in the Premier League alone, higher than any other defender in the league. He also became a standout performer in the Champions League and registered 4 assists from 12 matches.

Apart from his outstanding contribution towards the Liverpool's attack, his defending has been equally excellent as he has registered 2.1 tackles, 2.1 clearances, and 1.2 interceptions per game. Overall, he deserves to be on the top spot of this list thanks to his progress at both domestic as well as European competitions.