Darren Bent insisted he had to leave Aston Villa after too many "slaps in the face".
Brighton defender Greg Halford has agreed to extend his loan deal from Nottingham Forest until the New Year.
Bury have announced that they have been placed under a transfer embargo by the Football League.
The struggling Shakers are currently prevented from making any new signings pending an investigation into a short-term loan they received from the Professional Footballers' Association.
A short statement on the League One club's website read: "Bury Football Club can confirm that they are currently under a Football League embargo for registering new players.
"This embargo is a result of the club obtaining a temporary short term loan from the PFA until mid-January 2013.
"The club will make a further statement shortly."