Harry Maguire has revealed what he first told his team-mate when he saw Kobbie Mainoo train with the first-team at Manchester United.
Mainoo has emerged as one of the nation's most promising young midfielders after a brilliant breakthrough season at Old Trafford in which he has become a key part of Erik ten Hag's side.
The teenager has made 20 senior appearances for the Red Devils this term, and has scored one of the goals of the season in the Premier League against Wolves to win the game in stoppage time earlier in the campaign.