The bulky forward has picked up more yellow cards than he has scored goals for Middlesbrough. He has made 17 starts, come on as sub on 22 occasions and scored four goals.
This is in sharp contrast to his time at Bolton where he hit the net 45 times from 66 starts and 43 sub appearances.
His move to Leeds, should it come off, could well be part of a deal that sees Mark Viduka come to the Riverside.