Japanese football star Kaoru Mitoma is focused on coming back healthy next season after wrapping up an injury-shortened English Premier League campaign with Brighton on Sunday. The Samurai Blue winger has been out of action since February with a lower back injury and was sidelined earlier in the season by a sprained ankle. His absence dented the hopes of a Brighton side who finished 11th, five spots down from the previous season, following their 2-0 loss to visiting Manchester United on Sunday. Speaking after the game, Mitoma expressed frustration that he was not able to complete his recovery …