The 24-year-old arrived on loan from Shakhtar Donetsk last August but has not featured in a single game because of injuries and other 'problems'.
John Carver: “We asked him to play in a reserve game on Tuesday night against Middlesbrough, and he wasn't ready for that, so no he’s not close.
"I think he's been back with us now for three weeks. He's had a back problem and an injection in his disc.
"I felt he was ready for it, but you have to trust the player.
"I asked the player and he said he wasn't ready. There's a game next week against Derby, and I'll ask the same question to see if he's ready for it.”