Reminds me of Carroll actually, wins a good amount of headers but doesn't control them well enough and isn't too much of a goal threat.
Always get the impression the media see him as a spearhead of Sunderland's offensive play. Avid Mackem friend of mine reckons he's been utterly wank, barring 3 or 4 games this year.
IMO, on his day, a massive trouble for defenders. Just, for whatever reasons, he doesn't have many 'days'.