Arsenal gained a thoroughly deserved victory over Aston Villa to move into the top half of the Premier League table.
Thomas Partey headed in Emile Smith Rowe's corner for his first goal for the Gunners - having earlier hit the crossbar.
Right at the end of the first half, Arsenal were given a penalty after a long video assistant referee review for a Matt Targett foul on Alexandre Lacazette.
Pierre-Emerick Aubameyang's penalty was saved excellently by former Arsenal keeper Emiliano Martinez, but the Gabon striker put home the rebound from close range.
Villa improved on a thoroughly wretched first half, but Smith Rowe scored Arsenal's third 11 minutes into the second half.