The midfielder travelled with the squad to the south-coast but failed to make the 16 for the 1-0 Premiership defeat.
Glenn reported: "Simon picked up a whack behind the knee at Newcastle. It's too sore at the moment. We're hoping it won't keep him out for too long but he has to be doubtful for Saturday."
Glenn Hoddle has confirmed that Simon Davies missed our New Year's Day clash at Southampton with a knee problem and remains a doubt as we return to St Mary's in the FA Cup on Saturday.