guivarrichio
Not entirely sure, but;
Maybe your earphones was close the MPx player at the time to pick up the radio?
Or maybe your player has a small built in antenna inside your player that picked up the FM stations, but maybe the connections on it fell loose inside your player, hence it's not working anymore?
It's strange for it to work before and now not to work, so it seems to point more to hardware problem.
P.S>> I don't think NZ has ever won a World Cup, we didn't even make it into the World Cup game this year