would join the league for the 1910–11 season. Lalonde was returned to the Canadiens. The two dormant O'Brien franchises were to be held for two Toronto teams to join the league in the future, to play in the new Arena Gardens planned for Toronto. The 1910–1911 season saw the start of labour unrest in the league, as the league imposed a salary cap. The season almost foundered because of widespread dissatisfaction amongst the players at the salaries on offer, and players' unions were rumored to be on the verge of creation at several points. The players at first intended to form their own league, but the arenas were under the NHA control and surrendered for that season. Ottawa won the championship and held the Stanley Cup against Galt and Port Arthur. In the off-season, O'Brien exited the hockey business and Renfrew exited the league. This season, the league dropped the 'rover' position, changing the game to six-man hockey, although other leagues would hold on to seven-man play into the 1920s. Attempts would be made to reintroduce seven-man hockey in subsequent years but were unsuccessful. While the league delayed its schedule to try to accommodate the Toronto teams, who were waiting for the Arena Gardens' completion, in the end the league played with only four teams. In that same off-season, the Patrick brothers built two arenas in Vancouver and Victoria and formed the Pacific Coast Hockey Association (PCHA). The PCHA exploited the low pay of the NHA teams to raid the teams for players. Quebec won the league championship, winning its first Stanley Cup, defending it successfully against Moncton. Despite the raids by the PCHA, the NHA allowed a player-organized team of all-stars to play an exhibition series out west against the PCHA after the season. Some of the NHA players, notably Cyclone Taylor would be enticed to join the PCHA in the following season. In 1912–13, the two new Toronto teams joined the league, the Torontos, later dubbed the 'Blueshirts', and the Tecumsehs and the league expanded to six teams. Although the PCHA had raided Quebec for three players of its championship squad, they were replaced by top players from the Ontario and Maritime leagues, and Quebec repeated as champions. This year, the Quebec team traveled west to play the PCHA champion Victoria Aristocrats, in the first series between the two leagues' champion teams. 1913–14, the last before World War