Arsenal blew a chance to make up significant ground on Premier League leaders Liverpool on Saturday with a frustrating draw at Brighton as Manchester City pummelled West Ham 4-1. In-form Newcastle inflicted another painful defeat on Ange Postecoglou's struggling Tottenham and Chelsea's recent woes continued with a 1-1 draw at Crystal Palace. Mikel Arteta's Arsenal, Premier League runners-up over the past two seasons, travelled to the south coast hunting a fourth straight league win in the evening kick-off. Seventeen-year-old Ethan Nwaneri, in for the injured Bukayo Saka, scored a first-half goal to put them on course for a vital three points.