With the Six Nations just started, there is much talk of which team will win the Championship and the possibility of a Grand Slam decider.
The first Grand Slam was won in 1908 and the most recent in 2018, but why were none won between 1932 and 1946 inclusive?
Simply, between those years France was excluded from the competition, and, as a Grand Slam requires wins against four other teams, there could be no Grand Slams.