Popular sumo wrestler Endo has decided to retire from competition after missing the past two tournaments through injury, sources familiar with the matter said Monday.The 35-year-old from Ishikawa Prefecture has been ranked in the third-tier makushita division for next month's Kyushu Grand Sumo Grand Tournament following a prolonged absence during which he had surgeries on both knees.He sat out the entire Nagoya Grand Sumo Tournament in July, as well as all of September's Autumn Grand Sumo Tournament in Tokyo.Endo made his professional debut as a member of the Oitekaze stable in March 2013 a…READ FULL ARTICLE