Everton slipped into the Premier League relegation zone as they conceded five in a defeat by Arsenal at Goodison Park that increased the pressure on manager Ronald Koeman. Nacho Monreal, Mesut Ozil, Alexandre Lacazette and Aaron Ramsey netted for the Gunners after Wayne Rooney opened the scoring for the hosts. Oumar Niasse pulled one back in stoppage time before Alexis Sanchez added Arsenal’s fifth. Idrissa Gueye was sent off for a second yellow card with Everton trailing 2-1. BBC reports that Arsenal’s first league away win of the season lifted them above Watford into fifth in the table, while Everton have not won in five games in all competitions.