Mikel Arteta has told his Arsenal players to “stand up and be counted” after their Premier League title bid took a hit with defeat to Aston Villa.Two late goals gave Unai Emery and his players a deserved 2-0 victory at the Emirates Stadium to boost their own top-four hopes.In yet another twist in the title run-in, the Gunners were well beaten as Leon Bailey and Ollie Watkins struck within three minutes of one another to stun the home fans.Liverpool had lost at home to Crystal Palace earlier on Sunday and a fifth league defeat of the campaign for Arsenal leaves Mikel Arteta’s side in second – two points behind reigning champions Manchester City.