An extraordinary last 10 minutes at Stamford Bridge saw Chelsea fight back from 2-1 down to lead Aston Villa 3-2 only for the champions to gift the visitors an injury-time equalizer on Sunday.
After Didier Drogba made it 2-2 in the 84th minute, defender John Terry scored his first league goal for a year to send the home fans wild.
But Chelsea's defense went to sleep to allow Ciaran Clark a free header from point-blank range to change the atmosphere again. When the dust settled it meant Chelsea had taken just 10 points from the last 30 available. They remain in fifth place in the Premier League on 35 points, one behind Tottenham and four behind Arsenal. Man United and Man City lead the way with 41 points.
"I'm disappointed because we worked very hard in the second half to come back into the game when 2-1 down," Carlo Ancelotti, the Chelsea manager, said. "We did a fantastic job. We came back and made it 3-2 and everyone thought the game was finished. We needed to be focused, we needed to play another five minutes.
"We are improving, we have more confidence but we needed to win this game. We didn't and now it's more difficult to prepare for the next game."
Chelsea went ahead with a Frank Lampard penalty after 23 minutes but Villa levelled with their own penalty, by Ashley Young, just before half-time. An Emile Heskey header put the visitors ahead two minutes after the restart, and after Brad Friedel made three great saves it looked as if Villa would hold on for a morale-boosting win.
The American keeper did well again to block a Drogba shot after 84 minutes but the striker forced the rebound through three defenders to make it 2-2.
Terry then seized on another rebound to shoot home what he and most of the stadium thought was the winner in the 89th minute. But Chelsea inexplicably allowed Clark to ghost in unmarked to nod in Marc Albrighton's cross.
"We just kept fighting back today and hopefully we can kickstart our season from here," Friedel said.
"We've had many chats but there is a time when the talking just has to stop, and I thought the boys showed some true grit and determination. Today was just about grinding out something. There was a different feel about us today."
On Saturday, Arsenal beat Birmingham 3-0, with Robin van Persie scoring his first goal of the season.
Becks want to join Tottenham: Redknapp
LA Galaxy midfielder David Beckham wants to join Tottenham on loan, according to the club's manager Harry Redknapp. "He just said he'd like to come and play here at Tottenham," Redknapp said.
Galaxy's Major League Soccer season restarts on March 15. Former England captain Beckham played on loan at AC Milan during breaks in 2009 and 2010. "We'd have to (move fast)," said Redknapp. "I've left it to the people at the club (Spurs). I've passed it on to them. They're talking to whoever they have to talk to."