After making his full debut alongsideMarcus Rashford, Joe Riley will be hoping his career can follow the same trajectory as the teenage striker by breaking into the Manchester Unitedfirst-team. Riley has been with United since he was six and has risen through the ranks, converting from a winger to a full-back along the way. And the 19-year-old became a key contributor in the Manchester United under-21s march to their second successive league title in 2015/16. The Blackpool-born defender also made his first-team debut as a substitute. coming on for fellow under-21 champion Cameron Borthwick-Jackson against Shrewsbury Town in the FA Cup last season.Regardless, the full-back has settled back in to the under-23s and remains an important player in Warren Joyce's side. manager Jose Mourinho is still very much keeping tabs on trained the teenager. with the first-team earlier this season, suggesting that new Manchester United youngster Joe Riley is turning heads at...