Ricardo Carvalho has called on his Chelsea team-mates to keep the pressure on at the top of the Premier League with victories over Tottenham and Arsenal in their next two matches.
The Blues turned in a disappointing performance to lose to Spurs in the Carling Cup final last month and Carvalho is keen to exact revenge. If Chelsea can beat Juande Ramos' side on Wednesday and then follow it up with a win against Arsenal at the weekend, they could find themselves top of the table.
Manchester United, who face Bolton and Liverpool in their next two matches, are three points ahead of Chelsea and Carvalho admits it is crucial not to lose further ground. "These two derbies are decisive for us. If we get the six points then we will put the pressure on Manchester United in the race for the title," the defender told the Daily Mirror.
"We cannot afford to fail now. We know that the Tottenham and Arsenal games are so important because it will put us back in touch with the leaders. "We suffered a big blow when we lost to Tottenham in the Carling Cup final and, of course, we want to make up for that and show people what we are capable of.
"It was the same in the FA Cup. Some people lost belief in us and that did affect our confidence, of course. "But if we win these two games we will be back in the title race - believing we can win it."
Carvalho has been encouraged by Chelsea's recent performances in the league and has warned United and Arsenal that they will keep fighting all the way until the end of the season. He said: "Even though we have suffered badly in the two cup competitions, we have come back strongly and fought like lions in every match since.
"We are as dangerous and as strong as ever, and determined to win a trophy this season. "We know for a club like Chelsea it would be a failure not to win a major title."

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