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.
St Johnstone have announced the signing of Gary McDonald while confirming defenders Frazer Wright and Gary Miller have signed on for another year.
McDonald, 31, has signed a one-year deal with the Perth club, who are under the tutelage of new boss Tommy Wright following the departure of Steve Lomas to Millwall.
The midfielder last played in Scotland with Hamilton before leaving the Lanarkshire club in 2010 to join Morecambe.
McDonald previously played for Aberdeen, Oldham and Kilmarnock and was capped by Scotland B in 2005, scoring in a 2-0 win over Poland.
Miller joined St Johnstone from Ross County last summer while Wright moved in 2011 from Kilmarnock.