He told the Portsmouth News: "I don't like talking about anyone else's players until potentially we get them across the line. Let's just wait and see.
"Obviously Kyle Naughton is definitely somebody we are hot on and we have spoken to him and very much he is keen to come.
"I think that perhaps Tottenham want him to sign a new contract before he comes out and if I am honest that might be the small stumbling block at the moment.
"So at the moment, I don't know if anyone will come in before Palace."