Southampton face West Brom in the first leg of their championship play-off semi-final on Sunday. The game at The Hawthorns is the first of what Southampton will hope will be three huge clashes culminating in promotion to the Premier League at Wembley on May 26th. Manager Russell Martin will be pleased that his side are going into the two-legged affair with West Brom on the back of a strong win away at fellow play-off side Leeds United on the final day of the regular Championship season. There was no time to dwell on that 2-1 victory though, as attention turned immediately to beating a Baggies …