Exploring rule changes

I’m considering the potential rule change about the U21 foreign player slots, which might involve counting U21s as quota-free earlier, then changing it mid-season. I remember something about an eight foreigners rule in the Saudi Pro League allowing U21 foreigners to be registered outside the quota.

I plan to present a cautious context about Al Nassr's opposition to mid-season changes for fairness and competitive integrity. I can summarize what happened, its significance, Al Nassr's stance, and suggested next steps while asking a light clarifying question at the end.Crafting a response in Chinese

I’m looking to summarize that Al Nassr issued an official statement opposing the Saudi Football Association's mid-season change to the U21 foreign player registration policy. The main issue revolves around changing rules mid-season, which affects club planning for player signings and rosters. Al Nassr wants to maintain the original version or delay the new rules until next season, emphasizing fairness and compliance with contracts.

I'll also explain typical aspects of U21 foreign player rules if the user wants to know, and end with a question about what they need next.