 Complete the following phrase:  The Canadian Amateur Hockey Association CAHA had complained for years that Team Canada faced a competitive disadvantage in international tournaments as it was restricted from using its best players, who were professionals in the National Hockey League NHL, while European teams masked the status of their best players. The issue came to a head in 1970 when International Ice Hockey Federation IIHF president Bunny Ahearne reneged on a promise to allow each team to use up to nine professional players at the 