Sumo grand champions Onosato and Hoshoryu on Tuesday took a sightseeing stroll around London ahead of a five-day exhibition tournament at the city's Royal Albert Hall.They toured Buckingham Palace and walked around nearby landmarks such as Big Ben and the Houses of Parliament, occasionally stopping to take photos with passersby.Hoshoryu bought a hot dog from a food stall at Westminster Bridge spanning the River Thames, rating the snack as "delicious."The Mongolian-born yokozuna invited Onosato to share a bite in a light-hearted moment between two normally fierce rivals inside the ring.The t…READ FULL ARTICLE