Watching the Osaka Sumo Tournament right now...here's something that might surprise you.
Sumo is more than a sport. It has a quasi religious symbolic significance and deep history in Japan going back hundreds of years. It is a deeply important part of Japanese culture and Shinto.
The top rank of Sumo, the Yokozuna, or Grand Champion is ultra important in this. They wear a sacred belt, have a sword of their own that is carried into the ring as they do their daily ritual opening the tournament, etc.
But here is what might surprise you: That the country that many people say is so xenophobic and foreigner-hating...well both Yokozuna ARE foreigners and there might be a third one on the way. In fact in the last 20 years or so, 5 of the last 7 Yokuzuna have been foreigners.
Below: Akebono (US), Musashimaru (US), Asashoryu (Mongolia), Harumafuji (Mongolia) and finally, the greatest Yokozuna I have seen in my 30 years of watching sumo, Hakuho (Mongolia)