Manchester United are seeing Kobbie Mainoo excel in the first team this season, but not everybody can have such a meteoric rise from the youth setup. Mainoo is earning praise from all corners right now and the sky appears to be the limit for him. Mainoo has joined Marcus Rashford as a United youth product thriving at first-team level but others have had to move on. Just look around the Premier League and you will see a number of former United talents who had to quit Old Trafford for first-team action elsewhere. Anthony Elanga, James Garner, Sam Johnstone, Teden Mengi and Michael Keane all spri…
