Image source, Action Images/Reuters

The top division of Sumo is called the makuuchi, which includes five ranks.

The top rank is yokozuna, which translates to grand champion. Only 75 wrestlers have achieved it in the history of professional sumo.

The only yokozunas in the grand tournament are Onosato and Hoshoryu.

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.

The rankings are as followed:

1. Yokozuna

2. Ozeki

3. Sekiwake

4. Komusubi

5. Maegashira

Rachel Flynn
Reporting from the Royal Albert Hall

Image source, Rachel Flynn

The rope tying ceremony is complete.

Now it’s time for the ring entering ceremony.

Remember - you can watch all the action live at the top of this page.

Thomas Fabbri
Live from the Royal Albert Hall, London

Image source, Thomas Fabbri

Yokozuna Onosato is showing a rope-tying ceremony. It takes five assistants' strength and coordination to perform the job.

Image source, Action Images/Reuters

The Sumo sport is steeped in rituals, many of which you'll see throughout today's final.

Before the bouts begin, we'll see a ring-entering ceremony known as the dohyo-iri. Wrestlers will clap to attract the gods' attention and stamp their feet to drive away evil.

Before a bout, each rikishi scatters salt to purify the ring, which is thought to ward off injury. Salt can also help with making hands less sweaty, and improve grip on the opponent’s belt.

Next, the rikishi face each other squatting in the middle of the ring. This part is called shikiri, or the stare down.

The day will end with a closing ritual, called a yumitori-shiki. Wrestlers of the makushita ranking - the third highest - dance with a twirling bow presented to them by the referees.

For the final time, here is the rope-tying ceremony.

Click the 'Watch live' icon at the top of the page for coverage!

Rachel Flynn
Reporting from the Royal Albert Hall

Image source, Rachel Flynn

I’ve just been chatting to the Zdrzalka family, who have a special connection to the sport.

Dad Nick was here 34 years ago with his parents, the last time sumo came to London.

Nick, who is half Japanese, says: “I was only a child, but could appreciate how significant it was for my parents to see sumo in London.”

“It feels quite symbolic coming back with my five year old,” he tells me.

“I absolutely love it and I hope they come back more often,” Nick says, adding that the atmosphere feels like the London 2012 Olympics.

Olivia, 7, and Jack, 5, are dressed to impress - and they’re absolutely buzzing.

There's a lot of love for Hiro today, and throughout the tournament. He's been exceptional hasn't he!

Thomas Fabbri
Reporting from the Royal Albert Hall

Image source, PA Wire

It's Senshuraku - meaning it's the final day of the Grand Sumo Tournament in London.

We have three rikishi (wrestlers) with a perfect 4-0 record going for the title:

• Yokozuna Onosato
• Yokozuna Hoshoryu
• Maegashira 15 Tobizaru

As it always happens in sumo, the final match of the tournament is between the two top rankers. Today the 74th and 75th Yokozuna - from the highest sumo rank - might be facing each other for the title, just like last month in Tokyo.

Onosato won the title in Tokyo, but Hoshoryu leads the head-to-head record, having won seven out of the nine times they met. Today marks another chapter in a rivalry that will dominate sumo for years.

Tobizaru, the flying monkey, will face veteran Takayasu for a place in a title playoff. Expect a wild, wild brawl between two absolute fan favourites and fierce rikishi.

Takayasu won seven of their 10 bouts, but Tobizaru won the last one in March. If the flying monkey can do it, he will trigger a playoff against whoever wins the last match of the day.

We have four matches that see rikishi at 2-2 facing each other. These are what some sumo fans call 'Darwin matches' - the winners will get a kachi-koshi (winning record), while the loser will be make-koshi (losing record).

Thomas Fabbri
Live from the Royal Albert Hall, London

Image source, Thomas Fabbri

"Are you ready for sumo?" asks Japanese sumo commentator and tournament host Hiro Morita.

The crowd erupts!

Now the hosts are going through some sumo basics. Hiro is showing us his shiko stomps - the final day is properly on.

Image source, EPA/Shutterstock

The aim of sumo is pretty simple.

You need to force your opponent out of the ring or make them touch the ground with any part of their body other than their feet.

Not allowed: Kicking, punching, gouging, hair-pulling, choking

Allowed: Push, slap or trip, or grab them by their belt

There are no weight classes in sumo, so it is normal to see rikishi with huge size differences.

Sumo rankings determine who is fighting who, rather than physical attributes.

Rachel Flynn
Reporting from the Royal Albert Hall

Image source, Rachel Flynn

From looking around the Royal Albert Hall, one thing is clear - sumo has brought in a crowd of all ages.

Maggie and her daughter Ruby have come from Eastbourne, and it’s their first time seeing it in the flesh.

And that’s not for lack of trying - Maggie tells me they’ve been to Japan four times but never managed to secure tickets.

“I love that there’s so much ceremony attached to it,” Ruby tells me.

“The history of it all is so interesting… I love it.”

Image source, EPA/Shutterstock

If you're tuning into Sumo for the first time - remember, you can watch live at the top of the page - you'll find there's a fair bit of lingo.

Let's break it down:

rikishi - the name for a sumo wrestler

dohyo - the raised circular ring which the rikishi fight inside

bout - a match between two rikishi

gyoji - the referee

mawashi - the loin cloth that rikishi wear during bouts

chonmage - the traditional sumo wrestling topknot

kesho-mawashi - ceremonial aprons worn by rikishi during the ring-entering ceremony

banzuke - the sumo ranking list

Rachel Flynn
Reporting from the Royal Albert Hall

Image source, Rachel Flynn

The final is just about to get under way, and there’s no time to waste. Wrestlers are getting in their final stretches, squats and press-ups against the ring.

The Royal Albert Hall is filled with the sound of slaps, grunts and excited chatter from the crowd.

And here is it again, it happens to the best of us!

Rachel Flynn
Reporting from the Royal Albert Hall

Image source, Rachel Flynn

Yuma and his parents are currently wrestler spotting outside. Yuma’s banner says “grand sumo, well done!”

When they're not forcing their 30-stone opponent out of a small ring, the contestants have been making the most of their trip to London.

On Wednesday, one of the highest ranked wrestlers Onosato was papped enjoying a hot dog in front of Parliament.

They've also been spotted recreating the famous photo of the Beatles on Abbey Road, eating fish and chips and even travelling via Lime bikes.

Image source, Getty Images

Image source, Ryan Pierse/Getty Images

Image source, PA Wire

Thomas Fabbri
Live from the Royal Albert Hall, London

Image source, Thomas Fabbri

These friends are from an Italian sumo online community: Giandomenico, Paolo, Cezar and Julia (who's holding a Ichiyamamoto towel).

I'm part of that community too and I'm meeting them for the first time here in London, after speaking for years.

It's been great to see so many sumo fans getting together!

Image source, Reuters

What is it?

Sumo is Japan's national sport - a mix of tradition, discipline and Shinto religious rituals going back more than 1,000 years.

It is a combat sport with two wrestlers – called rikishi – fighting inside a raised circular ring – a dohyo – 4.55m (14.9 ft) large. Each match is referred to as a bout.

The bout is decided when a rikishi is forced out of the dohyo or touches the floor of the ring with anything other than the sole of his feet

When is it?

There are six professional sumo tournaments in a year, one every two months.

This Grand Sumo Tournament began on Wednesday 15 October and ends after today's final.

Why is it in London?

The Grand Sumo Tournament is taking place outside of Japan for just the second time. London and the Royal Albert Hall also hosted the 1991 edition - the first time a tournament was staged outside Japan in the sport's history.

Hakkaku Rijicho, the Japan Sumo Association chair, said he wanted to "convey to the people of London the appeal of Sumo - an ancient traditional Japanese culture".