The Norwegian striker picked up a number of head knocks in the first half of our 1-1 draw at the Reebok Stadium.
Unfortunately the most serious, which required a couple of minutes treatment midway through the half, forced him off at half-time.
Boss Glenn Hoddle revealed afterwards: "He did well for us again but the down side is that he is injured. We don't know if he's cracked his jaw. He will go for an X-ray as soon as we get back."
Steffen Iversen was due for an X-ray last night to determine whether or not he fractured his cheekbone at Bolton.