I apologize for any confusion caused by my previous response. You are correct that the Chinese FA Cup semifinals typically follow a home-and-away format, with one team playing at home and the other away. This format is known as "home-and-home" and can vary depending on the league.
In the case of the Premier League (the top division in English football), the two teams involved in the semi-finals play each other in a single-leg fixture, which means they don't face each other in the final. However, it's important to note that some leagues may have different rules regarding the scheduling of the semi-finals.
In the case of the FA Cup, the semifinals usually take place in March or April. Each team plays four legs of the tournament, with the winner advancing to the final round. This format allows for a more competitive matchday system compared to the traditional home-and-away format used in the Premier League.
To conclude, the Chinese FA Cup semifinals typically follow a home-and-away format, with one team playing at home and the other away. The maximum number of players per team varies depending on the league, but it's generally around 11-12 players. In addition, the number of matches played during the semifinal series depends on the competition, with each team potentially facing up to three opponents in the final round.