Sunderland boss Jack Ross is demanding clarity over the future of Josh Maja.
The young striker is being watched by Manchester City and Southampton.
“I do think, for everybody's sake, we need to bring it to a head sooner rather than later," said Ross.
“In my experience, the longer these situations drag on, I don't think there is any benefit to any of the parties involved.
“I haven't heard anything new on it [the negotiations]. The talks have been ongoing, and I think they have been much slower than the club would have liked.
“But speaking as a manager, I think clarity on these things is always better than uncertainty.
“My relationship with Josh has always been consistent, he knows that, and we communicate a lot. But there is uncertainty not only for the club, but also from his own point of view."