Arsenal moved back to the top of the Premier League with a comfortable 2-0 victory away to Aston Villa.
Arsenal took an early lead when Alan Hutton brought down Theo Walcott in the penalty area, allowing Olivier Giroud to net his 50th Premier League goal from the spot.
The Gunners doubled their advantage on 38 minutes when Mesut Ozil set up Aaron Ramsey for a simple finish following a swift counter-attack.
Villa showed signs of improvement after the break but could not beat Arsenal keeper Petr Cech, who matched David James' Premier League record for clean sheets.