Middlesbrough boss Chris Wilder is under no illusions facing Chelsea in the FA Cup.

Wilder thinks all the off-field uncertainty surrounding Chelsea's future will have unified the Blues squad and created a "siege mentality'

“I've not taken too much notice about all the stuff that's has happened over the last week-and-a-half. This is an outstanding team in every aspect of the game. A squad I would imagine is worth about a billion pounds.

"They've got a world class players and a world class manager, regardless of all the stuff that's been going on. They are still in the hunt for a top three finish and in the quarter-finals of the Champions League and the FA Cup.

“Their mentality I imagine should have been strengthened, with a little bit more of a siege mentality, that the world's against them, and they will certainly want to progress in the cup."