Derby County are chasing Everton striker James Vaughan.
Rams boss Nigel Clough says he's still interested in a deal.
He told The Derby Telegraph: "They are two names we are still working on and if we can, we would like one of those two in to the end of the season.
"They (Everton) may have moved the goal posts a little bit.
"We are in contact with them. The initial agreement was for him to come back on January 1, which we are way past. New factors come into play, so we will just have to wait and see."