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.
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.
