The Chinese Super League (CSL) has recently introduced new rules for the appearance of players under the age of 23. This change aims to promote youth development and prevent the overuse of senior players, which can lead to burnout and injury.

Under the new rules, all players who are between the ages of 18 and 23 must be registered with their clubs before the beginning of the season. They will also have to play at least 75% of their team's league matches during the season.

This means that younger players will have more opportunities to showcase their talents and develop their skills on the pitch. It also allows older players to rest and recover, which is crucial for maintaining their fitness levels and avoiding injuries.

In addition to this, the new rules also introduce a cap on the number of appearances a player can make per match. This means that each player can only play up to 60 minutes per game, regardless of whether they are young or old.

Overall, these new rules represent a significant step forward in promoting youth development in the CSL. By giving young players more playing time and allowing them to rest, it is hoped that this will help to reduce the risk of injury and improve the overall quality of play.