UK Grand Sumo Tournament: Reinforced loos and LOTS of rice
There will be about 20 bouts - or matches - of Sumo wrestling per day
- Published
Around 40 wrestlers and their teams have flown from Japan to London to compete in the Grand Sumo Tournament.
This is a big deal as it's only the second time the contest has been held outside of Japan.
The five-day tournament, or basho, is being held at the Royal Albert Hall, and such a unique event means unique challenges.
Because of the size and strength of the competitors the venue has reinforced its toilets and chairs, and the hotel says the super-size sport stars are getting through an incredible 70kg of rice per day!
What is sumo?
BBC Sport: What is sumo wrestling and how much they eat in a day?
Sumo is the iconic national sport of Japan. Two wrestlers - or rikishi - face off in a circular clay ring and try to push each other to the ground or out of the ring.
But the ancient sport is more than just wrestling and shows of enormous strength.
Rituals and ceremonies are performed before and after each bout, and the wrestlers commit their entire life to sumo, living and training together
Even eating is part of their training. The average wrestler eats between six to ten bowls of a special high-protein stew - called chankonabe - per meal.
That's around 10,000 calories!
Sumo makeover at the Royal Albert Hall
The Grand Sumo Tournament has the best wrestlers from Japan competing, so the Royal Albert Hall needed a major makeover for the event.
The sport takes place in a ring called a dohyō.
The stars have been meeting fans as they tour around London
So a five-metre wide clay ring has been built using 11 tonnes of clay as well as a wooden roof to look like a Japanese shrine.
The competition at the Royal Albert Hall in London runs until Sunday 19 October.