FIFA president Sepp Blatter should not have to remind clubs that they are obligated to release all players aged 23 and under for the Olympics. That's what he did today, though, after several European clubs attempted to hold back big name players from the competition.

Barcelona, for example, insists that it will not allow Lionel Messi to go to Beijing, because the Olympic soccer competition not a FIFA-sanctioned event. They reportedly have the backing of La Liga on this matter. Likewise, Werder Bremen is attempting to hold back world-class striker Diego from Brazil, and Schalke 04 has no plans to release Brazilian right back Rafinha. Both those players, however, are with the Brazilian national team in defiance of their clubs' wishes.

Blatter's statement comes just days after Real Madrid pulled Robinho from the Brazilian squad after discovering he had a groin pull. Robinho, however, is 24, so Madrid is under no obligation to release him, though the move didn't make the Brazilian Football Confederation any less angry.

This saber-rattling could continue right up until the opening ceremonies, though I suspect the clubs will eventually relent. What's Barca going to do, bench their biggest young star in retaliation? Argentina and Brazil are serious about winning gold, and they're not about to let any Europeans stand in their way.