Rebuilding the strength and conditioning needed to win the New Year Grand Sumo Tournament was a painstaking process, lone yokozuna Terunofuji said Monday.The 32-year-old grand champion claimed his ninth top-division title Sunday at Tokyo's Ryogoku Kokugikan after pulling out of the three previous tournaments with severe back pain from a training injury.He looked less than his imposing best at the start of the 15-day competition, losing two of his first seven bouts, but he rounded into form and eventually claimed the championship by beating sekiwake Kotonowaka in a tie-breaking playoff after…READ FULL ARTICLE