Manager Simon Grayson has named a 24-man party for Leeds' week-long training camp in Scotland, but he expects new arrivals to join the squad before they return home.
Luciano Becchio and Ben Parker were deemed fit enough to travel after suffering injuries, and could be joined by new team-mates if deals can be forced through in time.
"We're taking 24 with us, but it could well be that we add to that during the course of the week," Grayson told the club's official website.
"We're still looking at different options and we will see what happens, but we have two games up there so it may be that if someone comes in they will join up with us."
Leeds have scheduled fixtures against Falkirk and Motherwell before they return to England to continue their pre-season preparations.
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