The Black Cats are yet to seal a senior addition this summer, but have bid farewell to seven players at the end of their contracts while also allowing George Dobson to depart.
Aiden McGeady has penned a new contract to hand Lee Johnson a boost, but Sunderland are in need of further recruits in the coming weeks.
And with further outgoings still a possibility too, a new month could kick-start a busy period for the Wearsiders.
So where do the transfer deals in the pipeline - both in terms of incomings and outgoings - currently stand? We take a look at the latest state of play with a number of the players that Sunderland have been linked with over the course of the summer, as well as those still mulling over contract offers and attracting interest from elsewhere:
And with further outgoings still a possibility too, a new month could kick-start a busy period for the Wearsiders.