Grand champion Kakuryu pulled out of the ongoing Autumn Grand Sumo Tournament with a left knee injury on Sunday, a day after suffering his third straight loss to a rank-and-file wrestler.The 34-year-old Mongolian yokozuna said the knee had been bothering him prior to the start of the 15-day meet at Tokyo's Ryogoku Kokugikan, and that he will be sidelined for at least two weeks of treatment."I was worried about my left knee before the tournament. It feels tense. My leg wasn't moving well, not responding at all" Kakuryu said.Related coverage:READ FULL ARTICLE