When picking Manchester United’s most legendary player of all time, it’s fair to say Red Devils supporters are a little spoilt for choice. From Sir Bobby Charlton to George Best, from Wayne Rooney to Eric Cantona, Ryan Giggs to Bryan Robson, there’s certainly no shortage of candidates. But, when ranking the finest footballers ever to wear the sky blue shirt of Napoli, the decision becomes a whole lot easier. No one will ever match the extraordinary legacy of one Diego Armando Maradona, standing head and shoulders above all those who came before and those who arrived after. But Marek Hamsik com…