Fifa has decided that men's Olympic football teams will no longer be allowed to field three over-age players.
Argentina won gold at the Athens Games with three over-age players, but for the 2008 Olympics in Beijing and London in 2012 all players must be under 23.
Fifa president Sepp Blatter said:
"We will ask the Fifa Congress to abolish the three over-age players."
No age restrictions apply for the women's tournament.