StrandedSun TzuIan Royal Why should the player's contract with the new club impact on the transfer? The player's contract is a contract between him and the new club, has nothing to do with the old club.
The transfer deal between the two clubs has nothing to do with the player.
So as Dirk says, if it's negotiated into the transfer that there is a time limit to the sell on clause or it expires when the players contract changes that's one thing. If there is no time limit or clauses, then it stays in affect until it is triggered.
Are you not arguing against yourself there ?
If the contract between the clubs says that a sell on fee or other clause and it refers to the duration of the player's contract with his new club then clearly there is a link between the two deals ?
As I recall the wording of Murts contract was unclear and required legal clarification as to whether it applied to the life of the original contract or to the entire time Murts was under contract to RFC. Either could have been correct but it was established that it was the latter that applied.
As you state in your last paragrpah to an extent, it depends on the term contract. I would be very surprised if any team sells to another club saying theres a sell on fee if he moves under the first contract he signs as all the buying club would have to do is sign said player and then offer them a new contract the next day, freeing them from such a deal.
Just put a time limit on the clause, 4 years life time or if the player is sold within that period.
Not that I care about any possible fee to be paid.