Donald Love will be out for up to two months following an operation to cure an ankle problem.
The 24-year-old right-back hasn’t played since the start of September and has made just four appearances this season.
The defender recently underwent an operation to cure an ongoing ankle problem and the ex-Manchester United man faces up to two months out.
Sunderland are in action against Notts County in the Checkatrade Trophy on Tuesday night and Glenn Loovens could be involved.
The experienced defender wasn’t on the bench at Walsall but is fit and could be involved at the Stadium of Light on Tuesday evening.
Chris Maguire, who withdraw from the starting line-up on Saturday with a rib complaint trained at the Academy of Light on Monday.
He is expected to be rested against Notts County and is likely to return against Accrington Stanley in League One on Saturday.
Skipper George Honeyman remains out with an ankle injury.
Sunderland assistant manager James Fowler said: “Chris Maguire is back training, he was better today after he pulled out of the warm-up.
“I’m not sure if we maybe leave him out, it was a strange injury. He was fine training last week and he felt it pre-match. He will probably be rested for tomorrow and then hopefully be back for the weekend.
“Everybody else that was involved at the weekend is fine.”
On Love, Fowler said: “Glenn Loovens is fine but Donald Love is still out and will be out for a couple of months, he has had a small operation to cure an ankle problem which has been plaguing him for the majority of the season.
“It has been a bit stop start for him, but hopefully now he has been tidied up and moving forward.
"He will be out for a month or two but will be good to go when he comes back.”