Didier Drogba feels Chelsea have got Manchester United running scared in the title race.
United held a nine-point lead a little over a week ago, but the gap is down to two following the weekend's action.
The Red Devils tasted defeat at West Ham on Sunday, shortly after Chelsea had dug deep into their reserves to claim a 3-2 win at Everton.
Drogba was Chelsea's hero at Goodison Park as his late stunner claimed the points and he feels the momentum is with Jose Mourinho's charges.
"I know we have shown we have what it takes to be champions again, and I think Manchester United know it too," he told the Daily Mirror. "They would have been thinking at one stage on Sunday the gap was going to be eight points.
"But now it's only two and I believe this was the most crucial day of the championship race.
"Of course there are many games to go, many matches to be played and many points to be won or lost. Now though, we have the psychological advantage.
"United can see we are there, right behind them, and we are ready to be champions again."