All 20 Premier League clubs have agreed to an increase in substitutions for the remainder of the 2019/20 season. Each team will be able to send on five substitutes, instead of the usual three.
The changes, which have already been approved by FIFA and IFAB, have been put in place as players will have to play more matches in a shorter period of time.
Due to the increase in substitutions, the Premier League have decided that teams can only have three chances during the game to make the changes.
This means that to use the five substitutions, managers would have to make two at the same time on two separate occasions or make more at half time.
It is believed this will stop clubs trying to using the new rules to their advantage, such as needless time-wasting when they hold a narrow lead in a match.
To accommodate more substitutions, it has also been ruled that teams can now have nine players on the bench, instead of seven, so managers have more options to choose from.