Having lost their past four games on the trot, Manchester City have not looked like the juggernaut they are in recent weeks. Pep Guardiola’s men have conceded four goals and scored just two in their last two Premier League defeats against AFC Bournemouth and Brighton & Hove Albion — showing Liverpool and Arsenal that they may be there for the taking this season. Ruben Dias sent a warning to Manchester City’s doubters who might reckon they no longer have the hunger to strive for glory to question them as it drives this group of players to succeed. Fighting talk emerged from Kyle Walker after Ci…