Grand champion Harumafuji put an end to his 17-year sumo career on Wednesday after admitting to injuring a lower-ranked wrestler in an alcohol-fueled assault.The Mongolian yokozuna -- speaking next to his stablemaster Isegahama who could not hold back tears -- said in a press conference held in Fukuoka he was retiring to take responsibility and avoid damaging the reputation of a top-ranked wrestler."I take responsibility as a yokozuna for injuring Takanoiwa and hereby announce my retirement. I offer my apologies to the Japanese people, the Japan Sumo Association and all those who supported …READ FULL ARTICLE