Xherdan Shaqiri scored twice off the bench as Liverpool beat Manchester United 3-1 on Sunday to move top of the Premier League.
Sadio Mane put Liverpool in front at Anfield, but Jesse Lingard equalized following an error by Reds keeper Alisson.
Shaqiri then scored with a pair of deflected shots and lifted the unbeaten Reds one point ahead of champions Manchester City in the table.
“We managed to be patient until the end,” defender Virgil van Dijk said. “The crucial moment was when Shaq came on – he changed the game.
“We deserve to be top, and let’s keep this momentum.”
Mane opened the scoring in the 24th minute by chesting down Fabinho’s ball into the area and volleying past David De Gea.
Alisson gifted an equalizer before half-time by spilling Lukaku’s cross into the path of Lingard, who lifted a shot over the desperate keeper.
Shaqiri replaced Naby Keita in the 70th minute and made an immediate impact when his shot hit Ashley Young and went in off the underside of the crossbar.
The Switzerland international then clinched the victory with another deflected effort off Eric Bailley in the 80th minute.
United remain sixth on 26 points, a whopping 19 fewer than bitter rivals Liverpool, after 17 games.
United have now conceded one more goal than they did in the whole of last season.
“They are the strong team, but it’s hard to concede two goals in the moment we conceded and the way the goals happened,” United manager Jose Mourinho said.
“There were two easy goals for Shaqiri and because of the deflections there was no chance.
“If you speak about fortunate you speak about their second and third goals.”
Elsewhere, Southampton ended Arsenal’s 22-match unbeaten run with a 3-2 win and fourth-placed Chelsea held on beat Brighton 2-1.
Charlie Austin’s 85th-minute header gave Southampton just their second league win and handed Arsenal their first loss in any competition since August.
The victory in new manager Ralph Hasenhuettl’s first home game lifts the Saints out of the relegation places to 17th.
“As a club we know the position we’ve put ourselves, and with the squad we’ve got it’s not good enough,” said Danny Ings, who scored Southampton’s first two goals.
“But if we keep showing resilience and hard work we can turn it round.
“It shows we’re moving in the right direction already.”
Ings twice headed Southampton in front only for Henrikh Mkhitaryan to answer each time, leading to Austin’s winner.
Arsenal, in fifth, trail Chelsea by three points.
Eden Hazard set up one goal and scored another as Chelsea won for the first time in three away league matches.
Hazard set up Pedro Rodriguez’s 17th-minute opener and then shot past Mat Ryan just after the half-hour mark.
“The most important thing is to win games,” Hazard said after ending a personal nine-match goalless drought.
“We want to be top of the league at the end of the season.”
Solly March pulled one back for the Seagulls in the second half but Chelsea held on to pull within two points of third-placed Tottenham.