The first FIFA international window of the 2025/26 season has once again put club football on pause, as national teams took center stage with 2026 World Cup qualifiers and high-profile friendlies. For managers and fans alike, the key question is always the same: when does the international break finish, and when does club action return?

Official Dates of the September FIFA Window

According to FIFA’s official international calendar, the September 2025 window runs from September 1 to September 9. During this period, national teams have the right to call up players for official qualifiers or friendly matches, leaving clubs without many of their biggest stars.

This window has seen crucial World Cup 2026 qualifiers across different confederations, as well as tactical tests for coaches looking to shape their squads ahead of next summer. For clubs, the break often brings added concerns—fatigue, long flights, and the risk of injuries to key players.

What Happens After September 9?

Once the window closes on September 9, players are required to return immediately to their clubs. That means the focus quickly shifts back to domestic action, with major leagues resuming their schedules: LaLiga EA Sports, the Premier League, Serie A, and the Bundesliga all restart the following weekend.

The timing is especially important this season, as clubs not only return to league action but also begin preparing for the start of the UEFA Champions League 2025/26, which kicks off on September 16.

Back to Club Football

The September FIFA international break officially ends on September 9, 2025, clearing the way for the return of domestic and continental competitions. With leagues heating up and European nights just around the corner, attention now turns back to club football after a week dominated by national teams.