34.  OLA AINA

Ola made his Under-18 debut as an Under-16 in November 2012. He impressed in his first few appearances and earned starts in both legs of the Semi Final and Final of the 2012-13 FA Youth Cup, despite having a number of older alternatives ahead of him in the theoretical pecking order.
He continued to impress at right-back in the first half of the 2013-14 season, including spending time with the Under-21 squad and earning a professional contract upon his 17th birthday in October. The longer the season went on the more responsibility he was given; featuring at both full-back spots during the run to the FA Youth Cup Final and then being given his first starts at Under-21 level against Arsenal, Manchester City and Manchester United in a relatively unfamiliar position of centre-back. He passed with flying colours as Chelsea won the Under-21 Premier League title.
A regular across all competitions in 2014-15, he made his mark again as another FA Youth Cup followed, as did the 2014-15 UEFA Youth League crown. As reward for a fine season, he joined the first team squad on the post-season tour of Thailand and Australia.