The fifth Japan Rugby League One season kicks off next week with a wave of new and returning stars such as Semi Radradra, Manie Libbok and Ardie Savea set to light up the competition. Fiji’s Olympic sevens champion Radradra is a new signing for title contenders Shizuoka Blue Revs while World Cup winner and Springboks star Libbok has joined second division side Kintetsu Liners. New Zealand’s 2023 World Player of The Year Savea has returned for a second spell at star-laden Kobe