According to the news, UEFA

The President of football’s world governing body FIFA Sir Blatter says the presence of two English teams in the final of the European Champions League highlights the need to limit the number of foreign players in every team. He says hell ask this month’s FIFA Congress to prepare for a worldwide limit of five foreign players in each starting line-up by 2012. The European football body UEFA said the current English success was only the latest cycle of dominance among different European countries that wasn’t connected to foreign players.