Dipstick wrote:United have only got Martial on a 4 year contract (+ 1 year option - whatever that means) so if he turns out to be any good he'll be available on a free before he reaches his peak! Ripe for the picking.
Unfortunately not, clubs signing a player on a free under 24 must pay a development fee to the player's former clubs in recognition of their role in developing the player to the current level of ability.
On the question of best window, perhaps it is. Only time will tell, but I reckon the summer of 2010 was best for me, the sheer amount of quality we brought in was immense