Chelsea tried to cancel the loan over the weekend after Liam Delap's injury against Fulham, but the striker refused to return to London as his agent and Bayern worked desperately to schmooze the Blues. Agent Ali Barat vowed to 'fight with everything I have' to get the move over the line, and eventually Chelsea caved in and let him go, two years after he joined for £32m.
Plenty of factors go into determining a transfer fee: wages, length of contract, age, position, whether a club has a need to acquire a player or has a need to offload, what the budget is, and how far along the player is in his development. Galleni says there's a premium for upside: an exceedingly athletic player might be able to improve technically and therefore be worth the investment. (The opposite -- a very technically gifted player who becomes a better athlete -- is far rarer.)