In football at the moment, there are two elements to price - wages and purchase price. Clubs 'sell' players who are already contracted to them, to other clubs,

In football at the moment, there are two elements to price - wages and purchase price. Clubs 'sell' players who are already contracted to them, to other clubs, in order to have the contract nullified. The price can be tens of millions of euro. The buying club will tie down the new player to a long contract as part of the purchase, perhaps 4 or 5 years. Wages are low for young players, but will be increased rapidly if the player emerges as a real talent that other clubs would want, which gives the club the chance to extend the contract through renegotiation. A longer contract for a highly rated young player would mean higher wages also as part of the bargain, although contracts can be renegotiated and extended with higher wages at any time, if the club views the player as an asset that they wish to keep. When they extend that contract it generally means that another club who tries to buy will have to pay more, and usually wages are at least matched and often increased by the buying club. Sorry that's not a succinct answer.