The Blues' qualification for the quarter-finals of the Europa League has added to their lengthy fixture list which still includes the FA Cup as well as the Premier League.
Luiz told the club's official website: "I want to end this week with a great result on Sunday. It's a difficult game but we play at home and need to win.
"My legs are good, I am 25 years old. Sometimes if you have more players to change it is much easier to help the team, but this year we don't have too many players.
"But I want to play. I want to be on the pitch. Sometimes I am tired, but when I'm on the bench I don't feel tired, I love to play football."
Chelsea face West Ham United in the Premier League on Sunday.