By FOX Sports staff
Although United are currently favourites to win the Barclays Premier League given the 12-point lead they hold at the top of the table, their hopes of continental success this season were ended on Tuesday as they were eliminated from the UEFA Champions League after a 3-2 aggregate loss to Real Madrid in the Round of 16.
The Red Devils are still on track to do the domestic double but Luiz is determined to round off a miserable week for them by helping Chelsea boot them out of the cup this weekend.
"Sunday's a big game," the Brazilian said, according to AFP.
"All the world wants to watch this game and Chelsea go to Manchester to win."
While the Blues would relish the chance to beat United on Sunday, the game is also extremely important for them given it remains their best chance of silverware this season.
Rafa Benitez's side are currently fourth in the Premier League - 19 points behind United - and are also facing the prospect of an embarassing Round of 16 exit in the Europa League. They trail Romanian side Steaua Bucharest 1-0 on aggregate following Thursday's first leg.
Chelsea knocked United out of the Capital One Cup earlier this season after recording a 5-4 extra-time win at Stamford Bridge in the fourth round, a game in which Luiz scored.