The B. League revealed on Tuesday that the Alvark Tokyo and Ryukyu Golden Kings will tip off the inaugural season on Sept. 22 at Yoyogi National Gymnasium.

It is the sole game that will be played on the day, and the other matchups, which will be announced later, will be played on the weekend.

For the historical opening, the league picked two powerhouse clubs from the NBL and bj-league. The Alvark, who were known as the Toyota Alvark in the NBL, are a four-time champion in Japan's top men’s circuit (JBL and NBL), while the Golden Kings have captured the bj-league title four times, including one they just won on May 15.