It leaves Chelsea five points behind United five games into the Barclays Premier League season, but the Czech Republic international believes it is no problem most of the focus is on the Manchester clubs, United and Manchester City.
"We don't care what people are into," he told chelseafc.com. "We do our job, try to do our best and we will continue doing that.
"Even though we lost today there is a long way to go. City dropped some points [at Fulham] and you can see the league will be difficult for everybody. We are positive that although we lost we can build on it."