The Denmark international is likely to be available permanently now but his reported £50,000 a week pay packet means Bruce may not be able to do business.
"Everyone assumes (an interest in Bendtner) but the problem with Nic is can I afford him?" said Bruce.
"He has a huge salary. I've been able to get him on loan at my last two clubs. I know the lad, he has terrific ability but it's difficult with the amount of money he earns at the minute.
"For us to go and make a huge difference, to get a striker who can get 20 goals a year...where does a club like ours get them?
"They are few and far between and if they are capable of getting 20 goals a season they're usually too expensive.
"Can you get one in? It's always difficult but we're always trying. We're looking to get maybe one more in. That will prove difficult but we're working away."
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