Chris Wilder has been foiled in his attempts to lure a Leeds United player to Sheffield United on a free transfer with the defender choosing to sign with a different Championship club. A number of Leeds players are about to see their contracts expire at Elland Road and decisions will have to be made on Liam Cooper, Sam Byram and Jamie Shackleton who all see their deals come to an end. Robin Koch was in a similar position but he has agreed a permanent move to loan side Frankfurt, while Cody Drameh, Ian Poveda and Luke Ayling see their deals expire in June after being out on loan this term. Ayli…