Alexis Sanchez was once again the hero for Arsenal as they claimed a late, late 1-0 victory against a stubborn Southampton at the Emirates Stadium.It looked like being yet another frustrating night for the Gunners faithful as Fraser Forster put on a goalkeeping masterclass to sensationally deny Danny Welbeck twice and Olivier Giroud late on.

Southampton had chances of their own, though neither Graziano Pelle nor Shane Long could find the target, but Forster was the star of the show and did not deserve to be on the losing side.

However, Sanchez popped up in the last two minutes from close range to net his 14th goal of an impressive campaign in all competitions.

It provided Arsene Wenger with some welcome relief after some fans made their displeasure known following Saturday's slim 1-0 victory at West Brom.

Wenger chose to start former Southampton man Alex Oxlade-Chamberlain instead of Giroud as Sanchez moved into the central role up front, with Welbeck kept out wide despite his winner at the Hawthorns.

The Frenchman's opposite number Koeman was without the injured Morgan Schneiderlin, so Jack Cork was one of two changes.