Sekiwake Kotonowaka took a step toward his first career championship and promotion to the second-highest rank of ozeki Thursday by retaining the sole lead on the 12th day of the New Year Grand Sumo Tournament.Kotonowaka, who is chasing the 13 wins he likely needs here for ozeki promotion, had little trouble securing his 11th against No. 14 maegashira Onosho (8-4), who has plummeted from title contention with three straight losses at Tokyo's Ryogoku Kokugikan.Onosho, a former komusubi, was unable to budge the 189-centimeter sekiwake on his opening charge and crashed when he lost his footing …READ FULL ARTICLE