Despite Bailey's hopes of an annual All-Star Game, it did not become an annual tradition until the 1947–48 NHL season. In 1966, the All-Star Game was moved from the start of the season to its current position in the middle of the season. In 1979, the Challenge Cup series replaced the game, and in 1987 it was replaced with Rendez-vous '87. Lockouts disrupted the NHL season in 1995, 2005 and 2013 and resulted in the cancellation of the game in those years. As part of the NHL Collective Bargaining Agreement (CBA) that expired in 2014, the NHL agreed with the NHLPA not to hold an All-Star Game during Winter Olympic years, consequently the contest was cancelled in 2006, 2010 and 2014. In 2018, however, the contest was still played, as NHL players did not participate in that year's Winter Olympics.