Ben Wallace has but one item on his Christmas list.
  "If you want to get me something for Christmas," he said, "maybe you can go out and get me a knuckle."
  A knuckle?
  The ring finger on Wallace's right hand is, in fact, missing a knuckle. He jammed the finger during a recent game and completely dislodged the knuckle.
  "There's just a dent there now," Wallace said. "It's a problem for me. Especially when I am trying to fight for the ball. I don't have a whole lot of strength in my hand right now."
  But that, a hyperextended right wrist that he still tapes before every game, and two sprained ankles are only partly to blame for Wallace's recent struggles.