Santi Cazorla scored one goal and created another as Arsenal ended Manchester City's 12-match unbeaten run and damaged their title hopes.

Spain playmaker Cazorla converted a first-half penalty after Vincent Kompany fouled Nacho Monreal.

Arsenal added a second after the break when Cazorla's free-kick picked out Olivier Giroud and the France striker headed in from close range.

The result left City five points behind Premier League leaders Chelsea.