By MARI YAMAGUCHI
TOKYO (AP) — Sumo great Hakuho is retiring at the age of 36. It marks the end of an era in Japanese traditional sport. The Mongolian-born grand champion Hakuho has won a record 45 tournaments. That tally includes 16 perfect victories, which is also a record. Japan’s NHK national television says Hakuho has decided to retire because of a right knee injury. He has achieved 1,187 wins, an all time record in the sport. His retirement will leave only Terunofuji at sumo’s top rank.