Kai Havertz had a third minute strike ruled against Liverpool to deny Chelsea the lead at Anfield.
And it proved to be decisive as the two teams played out a 0-0 draw in Merseyside in a game that lacked any real quality.
German forward Havertz thought he had broken the deadlock in the third minute after tapping home from close range.
A bright start from the west London outfit saw them win a corner, which was whipped in by Conor Gallagher.
French defender Benoit Badishile was first to the ball to divert it into the path of his centre-back partner Thiago Silva.
The Brazilian veteran turned to shoot from just a few yards out, but his effort smacked against the post.
Havertz reacted quickest as the ball ricocheted back into the box to fire the ball home into the back of the net.
It looked as if James Milner was keeping the pair onside, only for VAR to intervene to rule out the goal for offside.
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Despite being stood behind his teammate, replays showed that Havertz’s foot was marginally just in front of the ball as Silva swivelled to get his shot on goal.
And much to the Blues‘ dismay, referee Michael Oliver signalled that it was a free-kick for Liverpool.
A frantic start to the match led Stuart Pearce to say on talkSPORT commentary: “A really open game here.
“I can’t see this ending 0-0 that’s for sure. I think Liverpool‘s defence is looking shaky.”
He added: “Chelsea will feel like they’ve missed an opportunity if they don’t score soon.”
The Blues had a number of half chances in the first half, with Havertz guilty of spurning the opportunities.
He constantly found himself in pockets of space, with Hakim Ziyech constantly looking to play him in.
Havertz missed with a header from a free-kick, while he also played a poor pass behind Mason Mount when he should have shot.
And he also had a volley that he failed to get on target after being picked out expertly by Thiago Silva.