Both teams come into the game at the back of disappointment, for the Eagles, a 2-1 defeat at the hands of Leicester ended a seven game unbeaten run even though that has done little to dampen spirits ahead of the trip to Wembley.
Chelsea might still be hurting from seeing their Champions League title defence end in Madrid but they can take respite in the fact that they put up a splendid performance and earned the respect of the world with their brave approach against the 13-time record holders.
But LondonWorld understand that both have travelled with the team into camp and Mitchell is in line to return to Wembley where he made his England debut a couple of weeks ago.
Michael Olise picked up a foot injury while on international duty with the French under-21 team a few weeks back, but has also been included in the team and if needed could get a run out although I suspect the Palace technical team will only do that if they feel the risks involved are quite minimal.
Chelsea manager Thomas Tuchel has said that he will be able to count on record signing Romelu Lukaku after the Belgian recovered from the knock that kept him out of the trip to Madrid in midweek. He needs a big game.
Crystal Palace are considered underdogs for this one but I’m sure they won’t mind and their manager Patrick Vieira will be hoping that they can produce a spectacle for their fans who are dreaming of a special show at Wembley.
So with the game just hours from us, here is how we think the Palace boss will start the game.