Tougher defense and a more up-tempo style enabled by a new generation of players can propel Japan to its first men's wheelchair basketball medal at the Tokyo Paralympics, veteran forward Hiroaki Kozai says.Japan opened its Tokyo Games campaign with a 63-56 victory over Colombia at Musashino Forest Sport Plaza on Thursday, and while Kozai gave the performance only a "B+" grade, he said the team managed to stick to its key defensive principles."It wasn't like how we wanted to play, but it was our first game and I guess we were a little nervous," said Kozai, who contributed nine points and fiv…READ FULL ARTICLE