Both strikers were on the scoresheet in their 2-0 win at Middlesbrough.
"There's a possibility they could both be gone before the fourth round because the transfer window is open," said Bruce.
"The thing is if you're a footballer and you're not playing every week you have a good right to knock down my door, and I would be exactly the same.
"If there is a solution for both that is good for them and good for us then we'll listen to it.
"But they both reminded us of what decent players they are and took their chances very well.
"I'm particularly pleased for Nick. He's had a disappointing time here but keeps reminding us that he can score a goal and I'm sure he'll be very pleased."
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