Yokozuna Kakuryu remained on top of the heap on Friday, the sixth day of the Spring Grand Sumo Tournament, with a solid win over former ozeki Kotoshogiku.The win left the Mongolian grand champion in a share of the lead with Brazilian No. 6 maegashira Kaisei at Edion Arena Osaka. Due to withdrawals by the other two grand champions, Hakuho and Kisenosato, Kakuryu is the only yokozuna in the 15-day competition.(Kakuryu vs Kotoshogiku)Kotoshogiku (1-5), now wrestling as a No. 3 maegashira, tried to ram the yokozuna out with a high energy charge, but Kakuryu showed his skill by grabbing hold of …READ FULL ARTICLE