Ravel Morrison has returned to parent club West Ham from Cardiff City on compassionate leave.
Brighton boss Sami Hyypia is weighing up a move for former France captain Alou Diarra.
Defender Dale Bennett has seen his contract at Watford cancelled by mutual consent.
The Academy graduate, 23, made his Hornets debut in a League Cup encounter against West Ham in September 2008 but has failed to nail down a regular first-team place at Vicarage Road.
Bennett has made a total of 25 appearances for Watford, 16 of which starts.
He also spent time on loan at Kettering, Brentford, AFC Wimbledon and Yeovil - the latter two coming over the first half of this season.