Paul Merson has shared his thoughts on how the upcoming FA Cup final could go between Manchester City and Manchester United. After Sunday’s final Premier League game of the season, which could see the Citizens win a fourth title in a row, City will prepare to take on their Manchester rivals in another FA Cup final. Looking back to last year’s final, the Blues got themselves 1-0 up with just 14 seconds on the clock through Ilkay Gundogan, who then scored City’s second goal of the game in the second half. Having won 2-1 on the day, Pep Guardiola’s side then went on to win the Treble by beating I…