Registration window
A registration window is the period in which a club submits or updates its squad list for the competition. Players signed or registered after the window cannot take part until the list is next opened.
Why it matters
It matters because it sets the timing of eligibility. A club cannot add a player to its European squad outside the window, so the deadline decides which new signings can play in the competition.
Where it is used
It is used before and during the competition. The main list is registered before the league phase, and a further window allows changes after the winter break, so the timing of a transfer decides a player's eligibility.
How to read it
Read the registration windows as the calendar of the squad. They fix when a club can change its European list, and they explain why a signing made after a window must wait to appear in the competition.
What it means
the period in which clubs register players for the competition
Registration window is one of the working terms of the competition. This entry explains it as a mechanism that holds true from season to season, so it can be read on its own or alongside the other entries in the glossary of the tournament.
- The period for registering squad lists.
- Sets when a player becomes eligible.
- The main list is submitted before the league phase.
- A further window follows the winter break.
- Signings outside the window must wait.
- The calendar of European eligibility.