#1 Ryan Sessegnon - 18 years (Fulham)

Sessegnon was voted as the best player in the Championship last season, as his 15 league goals helped Fulham clinch promotion.
He is the first player ever from outside the Premier League to be nominated for the PFA Young Player of the Year award. He's just 18 years of age, scary stuff, isn't it?
He was used at left-back for a large part of last season, but coach Slavisa Jokanovic realised his ability and moved him up the pitch. His ability to ghost into goal scoring positions profited Fulham greatly. Due to his time as a full-back, his crossing is very good as well.
Sessegnon blossomed in Jokanovic's system, and much will be expected of him in the Premier League. That being said, he turned 18 in May and the sky is the limit for him. He recently signed a new contract at Craven Cottage, a decision which is bound to assist his development.
Fulfilling even a part of his vast potential will make headlines next season.