Arsenal's faltering top four hopes suffer another blow with third successive loss

Despite dominating possession for long periods of the second half, Gunners unable to find a way past Fraser Forster

Arsenal's Nuno Tavares (left) and Southampton's Kyle Walker-Peters battle for possession at St Mary's

Premier League: Southampton 1 Arsenal 0.

IF Arsenal do eventually win the race to finish in the top four, they will have done it the hard way. Right now, though, their challenge is faltering badly.