Southampton will not be focusing on the summer transfer window too much just yet, with their crucial play-off semi-final second leg on Friday night. However, that is not to say their players will not be the subject of interest whilst they are concentrating on trying to secure an instant return to the Premier League. The two-legged tie against West Brom is finely poised, with the clubs playing out a 0-0 draw at The Hawthorns on Sunday. Now, a fresh transfer update has emerged for a player who could yet have a huge say on whether Southampton achieve promotion. READ MORE: The eye-watering sum Sou…