Veteran Takayasu continued to play giant killer as he knocked ozeki Kotozakura off the top of the leaderboard at the Summer Grand Sumo Tournament on Tuesday.Fighting as a No. 3 maegashira, the 34-year-old former ozeki pulled off the upset in the final bout of Day 10 at Ryogoku Kokugikan, securing a strong belt grip and moving Kotozakura around the ring before dropping him with an overarm throw."I was able to get the result nicely. It felt really good to win in front of so many people," said Takayasu (4-1-5), who sat out six days with a back injury before marking his return with victory over…READ FULL ARTICLE