The National Hockey League announced the cancellation of the 2004-2005 season due to a labor dispute. It was the first time a major sports league in North America lost an entire season to a labor dispute.
The players' union signs an agreement calling for international drug-testing rules during a 16-team World Cup tournament (eventually called the World Baseball Classic) during 2006 spring training. Each team will select a provisional roster of 60 players, 45 days before the start of the tournament, and players will be covered by the drug-testing rules until the end of the competition. The deal, signed by the union, the commissioner's office and the International Baseball Federation, states that IBAF rules will cover the frequency of testing before and during the tournament, the list of prohibited substances, the procedures for taking samples and the laboratories used. More substances are banned by the IBAF than by the major leagues.