English Premier League clubs have voted to extend the transfer deadline.
Managers have complained that allowing players to move once the season is under way causes disruption to their squads and preparations.
From next season, the window will close at 17:00 BST on the Thursday before the Premier League campaign begins.
The vote was not unanimous and clubs will still be able to sell players until the end of the normal window.
The window across Europe runs until 31 August.
The Premier League’s move means while clubs will be able to sell until that date, buying activity will cease on 9 August for the 2018-19 season.
European leagues will still be able to buy and sell until 31 August, while the Football League’s window also remains unaltered.
Football League bosses have indicated they could follow the Premier League’s move but require further dialogue with stakeholders before a decision is made.