Boss Gus Poyet snapped up the former England defender as Seagulls skipper Gordon Greer faces a spell out with a hamstring injury suffered during last weekend's 3-2 FA Cup defeat by Arsenal.
Right-back Bruno could finally be fit following a month on the sidelines with an Achilles problem, while winger Will Buckley is expected to be available despite coming off against Arsenal after feeling a twinge in his hamstring.
Tomasz Kuszczak returns in goal after Casper Ankergren got another run-out in the cup.
Striker Stephen Dobbie has joined Crystal Palace on loan while defender Romain Vincelot and youngster Matt McGiveron have been released.
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- Gordon Greer