Hull are chasing a deal for Hungary striker Nemanja Nikolic but may not be able to conclude a deal until next week.
The Tigers are stepping up their attempts to draft in a host of new signings before the transfer window closes, and Nikolic has now emerged as a top target.
Talks have already started with Legia Warsaw over a proposed £2.5million deal for the striker, but they are unwilling to finalise a deal until after their Champions League play-offs.
With as much as £20million at stake for those teams that make it through to the next stage, Legia want Nikolic to help fire them there before bidding him farewell.
Nikolic has already scored four goals in qualification, so it is easy to see why the Polish champions want to keep hold for a while longer.
Legia take on Irish minnows Dundalk tonight for the first leg, with the return leg next Tuesday, meaning Hull could have to wait until then to strike a deal.