Cardiff boss Malky Mackay admits he is struggling to bring in new faces before the emergency loan window closes on Thursday.
Mackay is trying to boost his squad following recent injuries to Andrew Taylor, Ben Turner and Aron Gunnarsson.
They join a number of other senior players on the sidelines including Craig Bellamy and Tommy Smith, and the Bluebirds chief revealed he has had numerous approaches rejected by a number of top-flight clubs.
"We have spoken to a couple of Premiership clubs already and unfortunately been knocked back for a couple of players," Mackay told BBC Sport.
"Clubs have their own situation with players - with the Capital One Cup, or being short of players and being exposed due to injuries - and cannot move them.
"We will continue to look to see if we can get some cover for the next month."