Values not changing by cheats

Im trying to change players attributes in 2010 fifa world cup game, since there is no in-game edit player attributes option, i searched for addresses of each attribute in cheats tap and found what i was looking for, but each time i change a value and click apply i see the value i entered in cheats tab, but actually in the game it won't change I tried that many times even with cheat engine and i get the same results So i ask you please if anyone could help me with this, or if you know anyway to change player attributes Thanks in advance