americans call wrestling and then there's sumo. it is japan's national sport, revered for centuries. sumo wrestlers are treated like celebrities in japan, which is why the news that some matches were fixed has the entire nation in shock. the stunning message from one wrestler to the other? "i'll go with the flow and put up at least a little resistance." bowing deeply in apology, the sumo association announced today it would cancel the upcoming grand tournament. the prime minister calls it a betrayal of the people. so, how are people here taking it? ♪ oh say can you see >> reporter: imagine at the start of tonight's game, the announcer said, sorry, no game tonight. tune in next year. that will give you some idea. akiko fujita, abc news, tokyo. >> that's some heavy business. that's "world news" for this sunday. diane sawyer will be back here