Congratulations to Kisenosato! He was promoted to Yokuzuna after winning the New Years Tournament. He is the first Japan-born wrestler to be promoted to Yokuzuna in 19 years. Sumo is more international than most people think. The other 3 active Yokuzuna are all from Mongolia, and of the current top 42 wrestlers, 15 were not born in Japan.
You can watch his first Ring Entering Ceremony as a Yokuzuna here: https://www3.nhk.or.jp/nhkworld/en/news/20170127_29/
To watch the New Year's Tournament check out NHK World's Grand Sumo page here: https://www3.nhk.or.jp/nhkworld/en/vod/sumo/