With their Beckenham training ground covered in snow, the Eagles have travelled across London to the former England captain's facility at the 02 Arena.
Meanwhile, Leeds are confident the match at Elland Road will go ahead.
"We have the bonus of undersoil heating and great staff," said manager Simon Grayson.
"We know that unless there is a problem with the areas surrounding the stadium we will play, so the mindset is very much on Saturday and Crystal Palace."
Source: PA
Source: PA