Arsenal are leading Southampton at half time thanks to a goal from Olivier Giroud.
The Saints showed their intention from the first kick of the game, closing down Arsenal and restricting their time in possession. James Ward-Prowse also sent in an early dangerous cross that was headed clear by Laurent Koscielny.
Despite Southampton containing the Gunners in the early stages, Jack Wilshere was close to giving the home side the lead when his chip over Artur Boruc came back off the post and back into the keeper's arms.
The Gunners began to impose their game on their opponents and again hit the post in the 19th minute. Mesut Ozil sent in a cross from the right and found Aaron Ramsey, who volleyed against the outside of the post.
However, the home fans were soon celebrating the opening goal of the afternoon. Boruc received the ball from Nathaniel Clyne, and despite having time to deal with it, he tried to take on Giroud. The French striker stole the ball and rolled it into an empty net.
The Saints came close to grabbing an equaliser with their first shot on target. Adam Lallana connected well with a dipping volley which Wojciech Szczesny had to tip over the bar.
They came even closer 10 minutes later, however. A one-two between Ward-Prowse and Jay Rodriguez ended with the latter volleying at goal. Szczesny got down low and parried the ball away.