There are not many sports that can keep an audience enraptured through 45 minutes of ceremony before the first point is even contested.
And yet, the intricate traditions unfolding in a small clay ring - virtually unchanged in hundreds of years - managed to do just that.
Welcome, then, to the Grand Sumo Tournament - a five-day event at the Royal Albert Hall featuring 40 of the very best sumo wrestlers showcasing a sport which can date its first mention back to 23BC.
London's Victorian concert venue has been utterly transformed, complete with six-tonne Japanese temple roof suspended above the ring.
It is here the wrestlers, known as rikishi, will perform their leg stomps to drive away evil spirits, and where they will clap to get the attention of the gods.
