United's crown as the number one defence is askew and Patrice Evra fears it could cost the Reds the title. Despite being deposed as Premier League champions last May by Chelsea United were still the meanest rearguard in the division. With 28 in their goals against column they were four better than Chelsea and 13 better than both Arsenal and Tottenham who finished in the top four. But after five matches this term United have conceded seven and have the worst figures in the top seven. Sunderland and Blackburn in the lower half of the table have conceded fewer. Sunday against Liverpool was the third time this season the Reds had let slip a two-goal lead. While it didn't cost them against the Anfielders it saw four title points shipped against Fulham and Everton. It is a trend that French left- back Evra (right) says is no longer a simple mishap. It was an accident against Fulham, an accident against Everton. If you do it again it is not an accident, he said. We need to stop doing that. We need to stop bringing that nervousness to the situation. We could finish the game with a heart attack. It is not easy for the players, the fans or the staff. I am concerned because we conceded two goals again. I don't know why we made the job hard. We can make it easy. We have to make sure that kind of thing doesn't happen again. We need to make Manchester United solid. It is not only about the defenders. It is about everyone. We conceded two goals on Sunday but Liverpool didn't even have a shot on target. It was a penalty and a free-kick. That type of thing should not happen. It was not only against Liverpool. It has been from the beginning of the season. I wasn't worried at 2-2 but I was very unhappy. We were playing at Old Trafford and we were winning 2-0 against Liverpool. Suddenly we are 2-2. Worry How can we then say we are going to win the league if you draw that kind of game? Reds captain and central defender Nemanja Vidic was perplexed by United leaking goals against Liverpool. We weren't happy with how we conceded the goals, said the Serb. When they made it 2-2, you wonder how it has happened. We had played some good football and I don't remember Liverpool having any shots before they scored. We looked solid. But the small details and strange situation cost us goals and in the end it starts to worry you. It wasn't just the manager who couldn't believe it. It was the players as well. I looked in their eyes. People couldn't believe it. I hope it is over now and we stop giving away cheap goals. We need to be stronger in the next few games. United could have slipped six points behind leaders Chelsea had it not been for Dimitar Berbatov rescuing the Reds defensive deficiencies with his stunning hat trick. Having had two personal match-winning goals wiped out by Steven Gerrard, the Bulgarian rode back on the white charger to dig his rearguard colleagues out of the mire. Berbatov is now top dog in the race for the Premier League's Golden boot with six to his credit. Vidic believes the 29-year-old is putting an early marker down for the top individual honours. All players know how good Dimitar is. His skills with the ball are incredible, added Nemanja. But the criticism he got last year was because he didn't score many goals. This season he is scoring a lot, and important goals too. We are all happy for him. If he keeps doing that we have a good chance to win the league and for him to gain some rewards and be player of the year. Evra, too, heaped praise on the rejuvenated hitman. Dimitar has had a hard time here. It has never been easy but he has worked very hard, said Patrice. He deserves this because everyone knows Dimitar Berbatov has a big talent. Against Liverpool he showed he has the power. He has everything to be the best striker here. I am really happy for him. He scores a lot of goals like that in training. He can do many things. I hope and wish that he will carry on doing that for the rest of the season.