Liverpool FC manager Jurgen Klopp compared the Liverpool and Manchester City rivalry to the rivalry Rafael Nadal and Roger Federer have had in tennis. Liverpool and Manchester City are the two top teams in the English Premier League and have been one of the best teams in Europe for over the past several years. This Sunday, Liverpool and Manchester City meet in a fixture that could be a key in determining this year’s Premier League champion. Liverpool and Manchester City have been dominating the Premier League for the past five years as for the fifth consecutive season the champion will be ei …