Takayasu maintained his outright lead Monday at the Spring Grand Sumo Tournament, improving to 9-0 by outmuscling fellow rank-and-file grappler Aoiyama.Ozeki Mitakeumi, sekiwake Wakatakakage and No. 6 maegashira Kotonowaka remained one win off the pace, securing winning records at 8-1 on Day 9 of the 15-day tournament.With the sport's sole grand champion, Terunofuji, pulling out Friday due to multiple leg injuries, the title race appears wide open at Edion Arena Osaka.Gunning for his first Emperor's Cup, No. 7 Takayasu came into his bout against Bulgarian-born No. 10 Aoiyama trailing 10-12 …READ FULL ARTICLE