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
Comparison of Canadian football and rugby union players have to both defend and attack. There are fifteen players in a rugby union team (except in sevens and tens). Many of the positions in each code have similar names, but, in practice, the roles of those positions can be different. A fullback in Canadian football is very different from a fullback in rugby. Some of the positions are fairly similar; a Rugby fly-half carries out a similar role to a quarterback in Canadian football; however, quarterbacks touch the ball on almost every offensive play. Broadly speaking linemen and linebackers in Canadian football correspond to forwards in rugby, and