The Black Cats have so far made four signings this summer.
Sunderland manager David Moyes
The Black Cats have signed four players already this summer, including Donald Love from Manchester United. But despite the 21-year-old's arrival, Moyes stated that adding more strength to the right-hand side of his defence is one of the priorities he has going into the final stages of the window.
"We have been hunting very hard for a right-back. We took Donald Love as a back-up, a young boy coming through, but we are still looking for that," he told the Shields Gazette.
"We are still looking for another centre-forward to help Jermain play alongside him or be back-up in some way.
"I still feel we are in need of at least one midfielder, maybe two," he would add.
Lee Cattermole is one of several players currently on the sidelines
"That is a big priority with the injuries we have got."
With the Shields Gazette reporting that the squad has been hit by a handful of injuries to key players, it is hardly surprising that Moyes is hoping to add plenty of depth before the deadline.
Sunderland put up a brave fight against Manchester City on the opening day, but Moyes may be concerned that it was playing against one of the division's top sides that brought that performance out of his players, and when they come up against teams of a similar standard to themselves, they may show some complacency and end up back in the relegation scrap.
By adding depth and increasing competition for places, the squad will know that they cannot be complacent on the training ground or during matches as there may be someone else capable of taking their place in the side, and that should surely boost their chances of avoiding another battle to beat the drop.