I always liked sumo more than boxing and other fighting sports. You win on objective standards (pushing out of circle or onto ground) instead of the scoring of potentially biased judges making subjective judgments about how many punches you land etc.
Turns out they were awaiting a 747 full of Sumo wrestlers from Japan, coming in for some huge tournament.
When it landed, the huge Nippers exited the plane in their full plumage and costumery......quite a sight, really.