Olivier Giroud scored both goals to help Arsenal beat an impressive Southampton team and extend their lead at the top of the Premier League table to four points.
Southampton keeper Artur Boruc played a major part in Arsenal taking the lead in the 22nd minute, after the Polish stopper failed to clear the ball away following a routine back-pass. Giroud pounced onto the confused keeper, nipped to ball off the stopper and slotted the ball into an empty net.
The second goal came for the penalty spot in the 86th minute, after Arsenal defender Per Mertersacker's shirt was pulled by Southampton defender Jose Fonte. Giroud sealed the victory for the Gunners as he sent Boruc the wrong way and secured his brace.
Arsenal were unlucky not to have added more goals to their tally. Two skilful efforts from Jack Wilshere, who's chipped shot from outside the box had beaten Boruc but was denied by the inside of the far post, and Aaron Ramsey, who's amazing back heel shot from a delightful Mesut Özil cross was also met by the far post.
Southampton were also close to scoring after superb efforts from new England internationals Adam Lallana and Jay Rodriquez. Both were saved by Arsenal keeper Wojciech Szczesny.
Theo Walcott returned to the Arsenal squad and came on as a substitute for 20 minutes, having been ruled out for two months with an abdominal injury.
Walcott's return offered the Gunners the sort of pace they had been missing and put the Saints firmly on the back foot throughout the final stages.
Victory means Arsene Wenger's side stretched their advantage at the top of the table, with Liverpool falling further behind the Emirates Stadium outfit.
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