Pep Guardiola’s Manchester City have maintained their unbeaten start to their Premier League campaign with a 3-1 victory over arch-rivals Manchester United in the derby at the Etihad Stadium. City were dominant through the game, especially in the early stages and took the lead through a marauding David Silva before Sergio Aguero doubled the lead just after the half-time kickoff. Jose Mourinho’s side pulled one back through a well-taken penalty from Anthony Martial after brought down Lukaku in the box. But it turned