Only the winners of each of the 10 groups in the Asian Champions League are certain to progress to the knockout rounds, where they will be joined by the three best runners-up from the east and west of the continent.

Source: https://www.channelnewsasia.com/sport/tachibanada-strike-earns-kawasaki-victory-over-ulsan-asian-champions-league-3818231?cid=cna_flip_070214

The change will bring the J. League calendar into line with top competitions in Europe and the Asian Champions League.

Source: https://www.japantimes.co.jp/sports/2023/12/20/soccer/j-league/j-league-calendar-change/

The group stage of the Asian Champions League begins on September 18. However, it isn’t yet known when Al Hilal will play in India since the final match schedule is awaited.

Source: https://indianexpress.com/article/sports/football/brazilian-star-neymar-set-to-play-in-india-mumbai-asian-champions-league-8907186/