The window is set to reopen on June 10, while Sunderland are already exploring the possibility of re-signing some of their former loan players from the 2021/22 campaign.
We asked Sunderland fans on our Facebook and Twitter accounts to name a realistic signing they would like the club to make this summer.
Several of you got in touch to share your views.
Here are some of the names that were mentioned:
Several of you got in touch to share your views.
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