Hoshoryu, real name Sugarragchaa Byambasuren, became the 74th yokozuna, or grand champion, after winning a major tournament last week.

To become a yokozuna, the wrestler must not only achieve great sporting success but also display good conduct and be approved by a board of judges.

Hoshoryu’s uncle Asashoryu, a former yokozuna who was known as the bad boy of sumo, was forced to quit the sport in 2010 after breaking a man’s nose in a drunken brawl outside a nightclub.

But Hoshoryu has already indicated he wants to follow a different path to his uncle, whose own ceremony took place 22 years ago to the day.

“I want to act properly as a yokozuna and do my best,” he said.

Around 3,500 fans arrived at the Meiji Shine in Tokyo to see the 25-year-old complete a number of rituals to receive his new title.

He was handed a white rope belt worn by yokozuna, which he put on for his ring-entering ceremony.

During this, he clapped his hands, stamped his feet and sat in a low crouch for several minutes as the crowd applauded.

“I practised a lot but I was still more nervous than I expected,” he said.

“I think I did it properly though.”

Unlike other ranks, a yokozuna cannot be demoted and is expected to retire if their level of sumo decreases.

Multiple wrestlers can hold the rank at any given time, but Hoshoryu will stand alone at the top after the last remaining grand champion Terunofuji, 34, announced his retirement earlier this month.

His appointment has avoided the sport having no grand champion for the first time in more than 30 years.

Mongolians have dominated sumo for the past 25 years.

Since the turn of the century, six of the seven wrestlers promoted to yokozuna hailed from the Asian country.

Japan’s only new champion during that period, Kisenosato, held the rank for less than two years.

“Mongolians do so well because their national wrestling style, Bokh, is very similar,” Rob Ó Néill, president of the British Sumo Federation, told the BBC.

In Bokh, fighters rely on leg sweeps, which are legal in sumo but were uncommon until the wave of Mongolian fighters turned professional.

“It was like a kickboxer fighting a boxer,” Mr Ó Néill said.

Although the Japanese fighters have improved at defending these moves, they are a fundamental part of the Mongolian fighting philosophy in a way they are not in Japan.

Sumo is a highly traditional sport that takes time to adjust.

Another reason behind the success of the Mongolians is that they start wrestling from a very young age.

“They’re also absolutely huge guys,” Mr Ó Néill added.

Unlike other combat sports, professional sumo does not have weight categories.

To be a professional, fighters must eat, sleep and train with one another in a type of training hall called a stable.

There are currently around 40 stables officially recognised by the Japan Sumo Association.

“It’s their entire way of life from when they join to when they retire,” Rob said.

Restaurants serving chanko, a type of stew eaten in vast quantities by the wrestlers, are often opened by former fighters near stables.

Each is only allowed to train one foreign wrestler, and as Japan is the only country with professional sumo, the majority of fighters are homegrown.

The winner of the men’s amateur Sumo World Championships, which fields competitors from almost 90 countries, is invited to join a stable.

Next October, more than 40 of Japan’s elite rikishi – wrestlers – will compete across five days to crowned the tournament’s grand champion.

The venue will be complete with an authentic soil and sand dohyō (ring) and a roof “reminiscent of a Shinto shrine”.

Previously the Kensington venue hosted the tournament in 1991.

It is “very unusual and rare” for the tournament to be held outside Japan, said Donagh Collins, chief executive of promoter Askonas Holt.

The event next October will be the first time in 20 years the Tournament has been held outside Japan.

There are six Tournaments each year held every two months so it took a while to be able to find a space in the Royal Albert Hall’s diary which matched up with the rhythm of when the Tournament is held, according to the venue’s chief executive, James Ainscough.

Japan Sumo Association chairman Hakkaku Rijicho, a former Yokozuna Hokutoumi, (Hokutoumi is the ring name), said: “I will be making every effort to convey to the people of London the appeal of Sumo, an ancient traditional Japanese culture, and to ensure that everyone enjoys the event to their heart’s content.

“Hakkaku, who won the 1991 tournament, added: “I look forward to meeting many of you there.”

Hiroshi Suzuki, the Japanese ambassador to the UK, described the sport as a “synthesis of Japanese culture and tradition” which was growing an international following.

Mr Ainscough said the last tournament held in London 33 years ago “captured the imagination of the entire country”.

“I’m really excited to see the impact sumo can have on hearts and minds,” he added.

Pressed on whether there will be affordable tickets he said that there were going to be a “whole range of tickets”.

“We’re also hoping for great TV coverage so even if you can’t make it to London you can watch it,” he added.