As is tradition before each Grand Sumo Tournament, a ring-purifying ceremony will be held 24 hours before the matches begin. This is open to the public to attend at the venue (since this is May it will be at Ryogoku Kokugikan in Tokyo) for free but it is also streamed FOR FREE on YouTube. You can watch the livestream below beginning at 6 PM PT/9 PM ET (it typically runs about 25 minutes), replays will also be available a few minutes after it ends:
If the above embedded video does not work, click the link below:
https://www.youtube.com/live/J7hzYNTlmnE?si=07cxq2Y-XrzMHPdG
(Video courtesy of the Japan Sumo Association official YouTube channel)