Manchester City boast a number of speedy players in their dressing room. Pep Guardiola has plenty of technicians who are capable of doing extremely impressive things with a football. But he’s also got several players who can run very, very quickly when needed. For a number of years now, it has been accepted that Kyle Walker is the fastest player City have, with the full-back famous for his pace. Several players have suggested that Walker has been the quickest over a longer distance. Only in April of this year, Sky Sports commentator Alan Smith described Walker as a ‘steam train’ during a game …