By Nathan Ridley Arsenal affirmed their status as the Premier League’s set-piece kings on Saturday, as the Gunners scored from another two against Crystal Palace. Mikel Arteta’s title chasers ran out 5-0 winners, with their first two goals coming from corners – one headed in by Gabriel Magalhaes and the other going down as a Dean Henderson own goal – meaning that Arsenal have scored the most set-piece goals this top-flight season. Eight different players registered a goal or assist, but not captain Martin Odegaard. However, Match of the Day pundit Ashley Williams reckons that the Norwegian mid…