By Hannah Pinnock Tottenham manager Robert Vilahamn has outlined one key trait his side possesses that he hopes will serve them well in this Sunday’s FA Cup final at Wembley. Spurs take on last season’s finalists, Manchester United, with this year’s showpiece event guaranteed to produce a new winner for the first time since Manchester City clinched their first FA Cup triumph in 2017. United will be hungry for the victory after they were edged 1-0 by Chelsea 12 months ago, whereas Spurs will be desperate to end the club’s 16-year wait for a major honour. Vilahamn has taken the Lilywhites on qui…