By Ewan Murray Manchester City are aiming to make it four wins on the bounce to start the defence of their Premier League title this Saturday when they host Brentford. Pep Guardiola’s side, who begin their Champions League campaign with a repeat of the 2022/23 final on Wednesday, haven’t had to get out of second gear at the beginning of the new season, beating Chelsea, Ipswich Town and West Ham United to collect maximum points. Erling Haaland has been in typically devastating form and could bag a third straight hat-trick at club level on Saturday afternoon, with his current goals tally standin…