Comparison of rugby league and rugby union Australian dual-code rugby international player, has said "Rugby [union] is very complicated and rugby league is much more simple in comparison". England's Chris Ashton, also a dual international, has said that union has "more of a tactical side, more that can happen in a game". Ireland's Tom Court has said "Rugby Union is a complex game with certain closed skills like scrummaging and line-out lifting and rugby league requires a higher level of fitness to compete at the highest level". The two forms of rugby share the same basic rules of the game and use a similar-shaped ovoid ball. The
Rugby union in Japan grow in the 1920s. Clarke taught English and coached rugby union at Keio from 1899 to 1910, after which an injury to his right leg forced him to give up playing. Clarke said that he wanted to give his students something constructive to do, as they In 1901, Keio University played "Yokohama Foreigners" losing 35-5, but the game demonstrated that the racial barriers in the sport were breaking down. Prof. Clarke played in this game, taking the conversion, after a student called Shiyoda scored a try. From Keio, Japanese rugby swept to the other universities of Japan, and to this