by opening new transfer window ,football clubs start to purchase new players ...

we can see big clubs like real madrid are interesting to make contract with very young players in high prices

so if they pay 20 million euro for an 18 year old if this player becomes 28 what is his cost?

Also we see in england chelsea bought Shevchenko but he scored just 4 goals for this club , are these goals cost this much?

I think this prices are too high for football players when there is risk to lost new player by various reasons and maximum they can play as a single player not even ronaldinho can be 11 players whose attacks defends and ....

by this way we don't know what will happen for poor and small clubs and specially for football