David Luiz has warned Manchester United that Chelsea are determined to beat them to what would be a sensational Barclays Premier League and Champions League double this season.
Luiz produced another virtuoso display on Sunday to help the champions edge past Manchester City 2-0 and maintain their late charge in defence of the title.
Chelsea went into the international break nine points behind faltering leaders United with a game in hand, having also drawn them in the quarter-finals of the Champions League.
Luiz, who is cup-tied for the latter clashes at the beginning of next month, has backed his team-mates to end United's European dream, while vowing to help the Blues complete what would be one of the most incredible title comebacks in Premier League history.
"We want to do everything this season," said Luiz. "We want to catch United in the Premier League and beat them in the Champions League. We have to believe - we can win the title.
"There are still many games and a lot of points to play for. I can't play in the Champions League because I am cup-tied but I am very close to the team. The happiness of my team-mates will be my happiness if they do well."