The boys’ team of rugby player Franc, American footballer Reef and gymnast Sol are in Japan to learn the national sport of sumo wrestling. Watched over and cheered on by presenter Karim Zeroual, at the end of the week they will be competing in a sumo wrestling tournament against top young locals.

Head coach Sensei Inahara has a tough training regime planned for the boys. Today is all about reaction times - a key skill for any good sumo wrestler. After an intense training session during which the boys have their first experience of wearing the mawashi (traditional sumo outfits) – as well as trying to push each other out the ring – Inahara takes them fishing. But this being sumo training, the fishing doesn’t involve rods and they have to catch the fish by hand!

Meanwhile, Karim has a taste of how good his reaction times are – and it doesn’t go all that well. Show less