Kenzo Shirai, who won gymnastics team gold for Japan at the 2016 Rio de Janeiro Olympics, announced his retirement from the sport on Wednesday.The 24-year-old, who also took the individual vault bronze in Rio, missed out on selection for the Japanese squad named earlier this month for the Tokyo Games."I have no regrets. I had an incredibly blessed gymnastics career," Shirai said at a press conference.Nicknamed the "Prince of the Twist," the Yokohama native caused a sensation when he won the floor event at the 2013 world championships as a 17-year-old high school student.Japan's youngest-eve…READ FULL ARTICLE