Diogo Jota capped Liverpool's dramatic fightback as the Premier League champions beat West Ham 2-1 to move three points clear at the top.
Jurgen Klopp's side were rocked by Pablo Fornals' early strike at Anfield as the West Ham midfielder punished a poor header from Joe Gomez in the 10th minute.
The Reds drew level in the 42nd minute when Mohamed Salah was fouled by Arthur Masuaku and the Egyptian stepped up to convert the penalty for his eighth goal of the season.
Liverpool thought they had claimed the lead with just over 10 minutes remaining when substitute Jota turned in a loose ball.
Jota had pounced after Lukasz Fabianski saved Sadio Mane's shot but after a lengthy delay that saw referee Kevin Friend make use of the pitchside monitor, the goal was ruled out for a foul by the Senegal winger.
In the 85th minute, Jota ran on to Xherdan Shaqiri's pass to score his fourth goal since joining from Wolves in September.
It was Liverpool's fourth successive victory since influential defender Virgil van Dijk was sidelined for several months with a serious knee injury suffered against Everton.
Despite their defensive issues this term, Liverpool have opened up a three-point lead over second placed Everton, with their Merseyside rivals in action at Newcastle on Sunday.
"It's not about shining, or flying, or whatever, it's about hard work. That was absolutely necessary against this opponent," Klopp said after Liverpool equalled their club record of 63 home league games unbeaten.
"We had a lot of good football, not 500 chances or whatever but enough. I want to see us dig in and we did that, and I'm so happy."
