The final edition of the Japan Rugby Top League kicks off Saturday with a plethora of world superstars on show and plenty to play for as the sport looks to make the transition from a corporate-run entity to a more professional competition from 2022.Beginning next year, the top 25 teams in the nation -- 16 from the Top League and nine Top Challenge League sides -- will play in a new three-tier competition, and this year's results will play a major role in determining which teams enter which division.The season was originally slated to begin Jan. 16 but was postponed after multiple teams suff…READ FULL ARTICLE