By Jude Summerfield Full-backs are increasingly recognised for their contributions to successful teams in Europe and throughout the world in the 2020s. Premier League title-winning managers like Pep Guardiola and Jurgen Klopp have redefined what is expected of the modern wide defender. You need only look at the contributions of the likes of Trent Alexander-Arnold, Andy Robertson and Kyle Walker to see how top sides now rely on unlikely sources of creativity and goal-threat for success in England’s top flight. Full-backs are now seen as marquee signings in the transfer market, with the right pl…