The Women’s Super League (WSL) is investigating Crystal Palace after the club used four substitution windows in their 1-0 win over Everton.

Multiple outlets report the issue relates specifically to matchday substitution procedures in Palace’s return to the competition. BBC Sport and Yahoo Sports say the WSL has opened an investigation, while The Athletic adds that match officials involved in the game are stood down. This suggests officials may be reassessing what happened and whether the rules were followed correctly, though no penalty or finding is reported yet.

The coverage focuses on the same core incident—the number of substitution windows used—while differing on additional procedural details. The Athletic emphasizes the status of match officials, whereas the BBC and Yahoo highlight the WSL’s investigation announcement. All accounts indicate the situation is under review and that the final outcome has not been made public.