Caulker Release Clause Value?

Anyone hazard a guess as to what it is, if there is one or is it just a release clause on relegation PENDING a price the club are happy with.

This piece reckons Southampton can activate a release clause with £5million. Seems a bit low.

http://footballleagueworld.co.uk/southa ... se-clause/

Wouldn't surprise me going with some of Malky's signings this season.

These types of clauses are usually a bit lower than the price the player was signed for, so in this instance I'd guess it was around £7.5m?