WBA is very good in this season. In case of victory here, they will share the fourth position with Tottenham and Everton.
Nobody was expecting something like this, even their fans. It is important to be mentioned that WBA is specially good at home. They have four victories in five matches at The Hawthorns and just one defeat. They were defeated only by the actual champion Manchester City in a match where deserved more. WBA was leading until 10 minutes before the end against ten men City, but Edin Dzeko scored two late goals. However, it is not a shame to loose from Manchester City. The captain Chris Brunt and defender Billy Jones have recovered from the injuries and both are in contention for this match.
Southampton on other side is very bad. To be more correct, they are the worst team in Premier League and they are on the last position with only 4 points from 9 games. Their away worm is also awful. Southampton have lost all four matches so far.
I believe WBA will win here. The quality and the confidence are on their side. Southampton have conceded 16 goals on the four away matches. The bad defense is a big problem for Southampton and WBA strikers will take advantage from that.