I really don't think this is true for a number of reasons:
1. Like it or loathe it, Southampton are actually a very well run club. Although Le Tissier is a legend there, the chances of them letting him know the ins and outs of any transfer deal are low, imho. It would be akin to Hoddle knowing what's going on at Spurs or Ledley. They know he is a pundit and it would be bizarre that the chairman (not around when Le Tissier was a player), manager, or Les Reed would tell him sensitive information knowing that he is a bit of a gob ****e, I mean pundit. He has fallen out with Southampton's new owners plenty of times. He's called them a laughing stock, couldn't call either Poch or Koeman joining them has never called any of their transfers yet has somehow been given the information that they rejected our bid and that it was lower than what they paid for him. He is just a former legend who thinks he has the inside track. He thought Cortese had left to go and get his own consortium to buy out Southampton's owners as an example.
Then you have the character of Le Tissier. What has he called right in terms of having inside information for Southampton. He was angry that Lallana and Lovren left for Liverpool (
http://www.express.co.uk/sport/foot...w-Liverpool-duo-Dejan-Lovren-and-Adam-Lallana) and then it turns out he advised one of them to move (
http://www.dailystar.co.uk/sport/fo...issier-told-Adam-Lallana-to-move-to-Liverpool).
And then there's the common sense. Why would anyone, let alone someone who is far more experienced than anyone on this board, put in a bid for a player that is less than what the selling club paid for when the player has been pretty good, is not looking for a move and the club is not looking to move them.