Malky Mackay looks to be on the brink of leaving Cardiff after a report emerged that he had been told to resign or face being sacked.
Bayern Munich right-back Rafinha has signed a contract extension to keep him at the club until 2017.
Jacob Butterfield's loan deal with Crystal Palace has been extended until March 17.
The Norwich midfielder moved to the Championship club during the January transfer window in order to get more playing time.
He has made five appearances since his debut against Bolton and only been on the losing side once, when the Eagles went down 1-0 at Huddersfield.
Butterfield came off the bench in their 4-1 win over Middlesbrough on Saturday, a result that was enough to move them into fourth place in the table.