Up-and-coming No. 9 maegashira Hakuoho has undergone shoulder surgery and will miss the entire 15-day Autumn Grand Sumo Tournament starting Sunday in Tokyo, his stablemaster Miyagino said Monday.The talented 20-year-old made a stunning top-tier makuuchi division debut at the Nagoya tournament in July, claiming both the Fighting Spirit and Technique awards after staying in title contention until the final day as a rank-and-file No. 17.But his spirited efforts on the raised ring aggravated a left shoulder injury dating back to his junior high school days.Miyagino, better known as the former y…READ FULL ARTICLE