Max amounts of foreign players in a team/match?

Hello, with the market hiring I have a doubt. Is there a maximum number of foreign players established per league? In Europe, for example, can I form a team of Europeans regardless of the country in my league, or must there be at least X players from that league per game?

Thanks in advance.

P.S: If anyone can tell me where to see the formulas to calculate skill improvements, it would be appreciated. I've seen on the forum that it is not recommended to raise a skill above 60 because it barely improves the bonus.

hi, no, there are currently no limits to foreign players of any kind.

@Nimco please sir what about raising a skill above 60,is what he's saying true?

I wouldn't say it is not recommended, the only difference is that over 60 the skills raise slowly.

Below 60 they raise by 1 point, between 60 and 70 the increment Is 0.8, between 70 and 80 it's 0.6 and so on.. every 10 points the increase becomes 0.2 points smaller