Amid renewed talk of his retirement, Japanese grand champion Kisenosato announced Thursday his decision to compete from the start of the 15-day New Year Grand Sumo Tournament at Tokyo's Ryogoku Kokugikan.Kisenosato's participation in the year's opening grand tournament had been in question after he became the first yokozuna in 87 years to post four straight opening losses at the Kyushu meet in November, then withdrew for a ninth time in 11 tournaments with pain in his right knee."I've been able to have unusually good practices up to this point, and I'm getting close to (the condition) I wan…READ FULL ARTICLE