The 2004–05 NHL season was locked out and eventually cancelled because of a labour dispute between the league and its players. In January 2005, Bettman commented that he was hesitant to allow league participation in the Olympics because he did not like the idea of stopping play mid-season after the cancellation of the previous season. The lockout was resolved in July 2005 and the newly negotiated NHL Collective Bargaining Agreement allowed league participation in the 2006 and 2010 Winter Olympics. Some NHL team owners were against their players participating in the tournament because of concerns about injury or exhaustion. Philadelphia Flyers owner Ed Snider commented that "I'm a believer in the Olympics and I think it's good for the NHL to participate, having said that, the people who participate should be the ones who are absolutely healthy." Some NHL players used the break as an opportunity to rest and did not participate in the tournament, and several players were injured during the Olympics and were forced to miss NHL games. Bettman said that several format changes were being discussed so that the tournament would be "a little easier for everybody".