The Blues enjoyed a double dose of outrageous fortune to keep their slim Barclays Premier League hopes alive and all but kill off Spurs' chances of qualifying for next season's Champions League and earning another £30million jackpot.

Tottenham were leading 1-0 through Sandro's first goal for the club when assistant Mike Cairns wrongly ruled Heurelho Gomes had spilt Frank Lampard's shot over his own line.

That was compounded in the 89th minute when colleague Martin Yerby failed to spot Salomon Kalou was offside when netting the winning goal.

Redknapp's anger was vented more at the game's lawmakers than the officials, although he did accuse Cairns of "guessing" and of being influenced by the Stamford Bridge crowd when awarding Lampard's equaliser.

"He's on the 18-yard line when the ball's on the goal-line," Redknapp said.

"It's impossible to judge. No-one in this world can be sure if it's crossed the line or not.

"He's had a guess and he's guessed wrong.

"It was an honest guess, he hasn't done it purposely because he wanted Chelsea to win or Tottenham to lose.

"He's made a mistake and it happens all the time. Until we get technology, it'll keep happening."

Ironically, Lampard was the same player famously denied a goal in England's World Cup thrashing by Germany last summer.

Redknapp added: "When Frank Lampard can hit a shot that goes two foot in the back of the goal and they don't give a goal, it shows you it will continue to happen.

"It takes five seconds to get the right decision. What is wrong with getting the right decision?

"People say, 'That's the fun of the game'.

"How's it the fun of the game getting wrong decisions and giving goals when they're not goals or not giving a goal when it should be a goal?

"The game is about getting decisions right.

"The whole ball has to cross the line, the whole ball.

"If you're in doubt, you shouldn't give it, but it's so difficult to see in that split second.

"The crowd all shout, 'Goal', and he goes, 'Yeah, a goal', and he's given a goal.

"At home, you do tend to get decisions like that when everybody cheers and the crowd's all up. That does happen."

Chelsea boss Carlo Ancelotti admitted his side enjoyed two huge strokes of luck.

"Today we were lucky," he said.

"We have to be honest to say this because looking at the [goals] on the television, we can say the decision was wrong but it was a very difficult decision.

"We have to accept this when things are good for us and also when things are against us."

Kalou came off the bench to score the winner but appeared to show his displeasure at starting as a substitute, disappearing straight down the tunnel at full-time as his team-mates celebrated on the field.

Ancelotti said: "I am happy because he scored a goal and if he didn't celebrate because he was disappointed, I'm not interested.

"It's not a problem. I have to manage valuable professional players and I understand sometimes they are not happy to stay on the bench, but this is Chelsea.

"It is a top club, you have competition in the squad because a top club does not just have 11 players."

Chelsea are now three points behind leaders Manchester United who face Arsenal at the Emirates Stadium tomorrow.

But Ancelotti insisted he was not thinking about the outcome of the match and was only focused on Chelsea's remaining games.

He said: "I don't know what will happen tomorrow and it doesn't matter what happens tomorrow.

"Maybe it will be a fantastic game and Arsenal will win or maybe Manchester United will win so the gap will be six points.

"I think at this moment we have to prepare well for our next game and our next game is against Manchester United."

Sir Alex Ferguson was in the stands at a sun-drenched Stamford Bridge but left before Kalou netted the vital goal.

Ancelotti was keen to make sure his rival was aware Chelsea are still in the running to retain their title.

"He didn't see the last goal," he said.

"I will send him a message to say that we won."