Crystal Palace boss Neil Warnock has placed midfielders Carl Fletcher and Paul Ifill on the transfer list.
Wales international Fletcher, who played in the 2006 FA Cup final for West Ham, has struggled to hold down a place under Warnock.
Winger Ifill, who was sold to Palace by Warnock when he was manager of Sheffield United, has made just 12 starts after suffering with back and hamstring problems last season.
They join Dougie Freedman and Shefki Kuqi on the Eagles' transfer list as Warnock, who is trying to land a new striker, looks to freshen up his squad.
"This is a good opportunity to let other clubs know we will listen to player exchanges and not just transfer fees for some of them," he told the South London Press.
"Other clubs might have surplus players and just need a new face themselves. I honestly don't know if any of them will move on but with two weeks of the window left we've got to highlight they are available."