Barnsley manager Gudjon Thordarson has no new injuries to worry about ahead of the game at Oakwell.
Gary Jones, Kevin Donovan, Robbie Williams and Carl Barrowclough are still out.
It was hoped that Donovan would recover from illness in time for the match but he is again unavailable.
Youngsters Adam Oldham and Nicky Wroe are fit again but are set to feature for the Under-19s at Norwich.
Former Brentford player Gibbs is struggling to shake off a stomach injury sustained in Monday's reserve game at Walsall.
Brighton boss Steve Coppell has completed the signing of Chelsea striker Leon Knight ahead of the trip to Barnsley.
Albion fought off competition from QPR to secure the diminutive forward on a two-year deal after he impressed during an initial loan spell this season.
"It was a very easy decision," Knight told the club's official website.
"I've seen how the club is run and it's the kind of club I want to be at."
Coppell is only missing long-term absentee Dean Blackwell for the Oakwell clash.
That's the blue button that says NSC live chat? Doesn't work for me just brings up a blue screen. Either I'm an impatient or some sort of properties need changing, or it's buggered.
just got home, we were pretty poor this afternoon.
Henderson was way off the pace, and the midfield produced very little service to Leon.
Barnsley wanted more than us, when they had the ball they kept it far better than we did.
Their goal was very similar to QPR's on Monday
Lets hope its better on Monday
Poor performance,lacking imagination.
Lack of supply and support for Leon Knight.
Goal disallowed,Henderson header cleared off the line but should have scored,Great save by Ilic off Rogers header right at the end.Deserved a point but concerning.They had a couple of players causing trouble for Watson and Mayo.we were quiet aswell I thought.Still lets put it right again Monday.
Worry about Cullips injury all due to the bad throw out by Roberts.
Never mind back on the piss.