And the skipper knows the team also has the FA Cup to target, where they also face United in the semi finals.
"Listen, our job is to be as high as possible in the table," the 30-year-old told reporters after the 3-0 loss to Sheffield United on Saturday.
"We got into third place and our aim is to finish as high as possible. When you lose that chance to have it in your hands and finish third, it is a big disappointment.
"And it is now out of our hands and we are very disappointed about this and this result. But we know that in 72 hours we have a massive game. We have to play from here to the end of the season like it is a final and get the maximum points as possible.
"When you are a player of Chelsea you have to give everything in every training session. Always Chelsea have had very good players, world-class players and new signings. We know that we have to fight for our place.
"The standards are high and you have to aim for the maximum. This ambition has to remain and we know that the squad we have at the moment is the one that can achieve the targets for this season.
"And when the next season comes, we will take it as it comes but I think the focus is 100 per cent on doing the best job we can in these weeks and get the targets we aim for."