But the Peru international also admitted that if the club decided to sell him there was little he could do about it despite his contract running until 2006.
"If Newcastle decide to sell me, then I don't have much choice. I saw what the manager said, but it's nothing personal," Nobby told The Journal.
"I'm quite happy to stay at the club despite the signing of Lee Bowyer and my agent hasn't mentioned anything about my future. I know nothing about any interest from other clubs and I am not on the transfer list.
"But of course I will have to go if United receive a good offer. Every player in the world has a price and I don't pretend to be any different. Just look at David Beckham.
"One day a bid might come in and I might be told it is time to talk about my future. But no way do I want to leave. I have worked hard to help Newcastle establish itself as one of the best clubs in the Premiership and I don't want to miss out on what might happen next season."