Chelsea defender David Luiz is convinced they can heap more misery on Manchester United in the FA Cup this weekend.

Luiz says United will suffer a Euro hangover in Sunday's Old Trafford FA Cup quarter-final following their Champions League exit.

He said: "It's difficult when you have been knocked out of an amazing competition like the Champions League because your confidence is not the same.

"The happiness in Manchester United's hearts will not be there and Chelsea can use this to win our game on Sunday. Maybe it gives us an advantage.

"United will be playing at home but some players and supporters will be thinking 'it's not the Champions League' and it will be difficult for them to come in with the same form."