Ahead of the 2019/20 season, we look at the new things to keep an eye out for in the Premier League.
The International Football Association Board (IFAB) have updated the Laws of the Game, and we are examining what has changed.
In order to minimise the potential for time-wasting, any player being substituted must leave the pitch at the nearest point on the touchline or goalline.
The only exception will be if the referee indicates that the player can leave quickly at the halfway line or a different point because of a safety or security issue, or due to injury.
Once substituted, the player must go to either the technical area or dressing room to avoid problems with substitutes, spectators or the match officials.
If they are thought to have infringed the spirit of this law and delayed the restart of play, they will be sanctioned for unsporting behaviour.