1920 in Canadian football 1920 in Canadian football CIRFU and IRFU adopted a four-yard Interference rule while the CRU opted for three yards of Interference. ARFU played games with 12 players per side and introduced the snap-back. The reduction in the number of players was done for monetary reasons as train rates were high after World War I. The CRU would make the same changes in 1921. The MRFU champion Winnipeg Victorias were unable to field a full team for the WCRFU finals and withdrew from competition. The MRFU wanted to substitute the second place University of Manitoba Varsity team but the SRFU refused
Canadian football a CFL game. Canadian football is played at several levels in Canada; the top league is the professional nine-team Canadian Football League (CFL). The CFL regular season begins in June, and playoffs for the Grey Cup are completed by mid-November. In cities with outdoor stadiums such as Edmonton, Winnipeg, Calgary, and Regina, low temperatures and icy field conditions can seriously affect the outcome of a game. Amateur football is governed by Football Canada. At the university level, 26 teams play in four conferences under the auspices of U Sports (known from 2001–2016 as Canadian Interuniversity Sport); the U Sports champion