The Premier League title race took yet another twist on Sunday as leaders Manchester United were held to a 4-4 draw by Everton in a pulsating match at Old Trafford.
United led 4-2 with seven minutes to go but late goals by Nikica Jelavic and Steven Pienaar secured an unlikely draw for Everton.
he result left United six points clear at the top but Manchester City can reduce that to three - with three games remaining apiece - if they win at bottom side Wolves later on Sunday.
And United manager Sir Alex Ferguson was livid at the way his side had let slip a winning position.
"We've thrown it away, no question about that," he said. "It's hard to imagine (how) it happened, how poor we defended.
"It was a bad performance by us, they were soft goals, yet some of our football was magnificent and our forward play didn't deserve that."
Jelavic put Everton ahead on 33 minutes but goals from Wayne Rooney, Nani and Danny Welbeck made it 3-1 to United on the hour mark.
Marouane Fellaini pulled one back for Everton but when Rooney scored his second on 69 minutes, the match looked over.
Patrice Evra headed onto the post soon after but Jelavic reduced the deficit and Pienaar struck with five minutes to go to pull off a remarkable draw.
Rio Ferdinand almost won it for United with a shot in injury time that was brilliantly saved by Everton goalkeeper Tim Howard.
We had a chance to make it 5-2, hit the post and they went up the other end and gave themselves hope," Ferguson said.
And the United manager said their game away to City on April 30 was now absolutely pivotal to the destination of the title.
We've got to get a result at Etihad Stadium now," he said.
"It's a derby of amazing proportion - probably the most important derby game in my time. We have to go there, perform in right way and not give away goals."
Everton manager David Moyes was understandably delighted with his side's resilience as they moved two points clear of Liverpool in seventh.
The effort they put in was absolutely brilliant," Moyes said.
"We came to win the game, we felt we had been a bit hard done by lately.
"Today was a chance to play in another big game and stop people thinking our season was over. I don't think at any time we deserved to be two goals down."