Well, the manager in question is Lee Johnson, who is about 5'5. Pretty much everybody looks 6'3 to Lee. So take his claim with a pinch of salt. Or, as Lee himself would say, a handful of 16 carat crystals.
Outstanding athlete, I coached this lad for athletics when he was 12/13 years of age and was incredible. People at Bristol City have been full of praise of him for some time. I would take a punt for sure, coaches of the youth team at Bristol City used to say he was the next Rio Ferdinand, two footed, could bring the ball out from the back, fast and mobile.