Match ends, Genoa 2, Lazio 3.
Ciro Immobile became the first player in 61 years to reach 27 Serie A goals after 25 matches as Lazio moved back within one point of leaders Juventus.
The Italy striker, 30, doubled Lazio's lead after Adam Marusic's opener at relegation-threatened Genoa.
Francesco Cassata replied but Danilo Cataldi made it 3-1 before Domenico Criscito scored a late penalty.
Antonio Angelillo was the last man to make such a prolific start to a Serie A season, with Inter Milan in 1958-59.
The Argentine striker ended that season with 33 goals in 33 games.
But the record for most goals in a Serie A campaign is held by current Juve striker Gonzalo Higuain, who scored 36 in 35 games for Napoli in 2015-16.
Who is Ciro Immobile? And can he break the Serie A record?
Higuain set the record in style. Going into the final game of the season, he was two goals behind Gunnar Nordahl's mark of 35 in 37 for AC Milan, which had stood since 1949-50.
The Argentine striker, who ended last season on loan with Chelsea, then hit a 19-minute hat-trick in the second half of Napoli's 4-0 win over already-relegated Frosinone.
Immobile had finished the 2015-16 season with five goals on loan from Sevilla to Torino, for whom the former Juve youngster scored 22 goals in 2013-14.
That loan spell paved the way for a permanent return to Italy with Lazio, which kick-started Immobile's career at the age of 26 after underwhelming spells with Borussia Dortmund and Sevilla.
He scored 26 goals in 2016-17 and followed that up with 41 in all competitions in 2017-18, and despite a dip last term, Sunday's goal at Genoa took him to 116 goals in 166 games for Lazio.
His form has raised hopes of the Rome-based club stopping Juve claiming a ninth straight Scudetto and winning their first title since 2000.
Lazio have 13 games left, with Immobile nine goals behind Higuain, and he has the added motivation of trying to cement a spot in Italy's starting line-up for Euro 2020, having been in and out of their starting XI during the qualifiers.
- 92SoumaoroBooked at 69mins
- 55MasielloBooked at 28mins
- 32AnkersenSubstituted forFalqueat 58'minutes
- 30FavilliSubstituted forPandevat 58'minutes
- 9SanabriaSubstituted forDestroat 74'minutes
- 1StrakoshaBooked at 75mins
- 4Gabarrón Gil
- 6LeivaBooked at 20minsSubstituted forCataldiat 54'minutes
- 10Romero Alconchel
- 22Rodríguez MenéndezSubstituted forLazzariat 62'minutes
- 20CaicedoSubstituted forCorreaat 54'minutes
- 5J Lukaku
- 15Jacinto Quissanga
- 28Pomilio Lima da Silva
- Fabio Maresca
- Shots on Target
Second Half ends, Genoa 2, Lazio 3.
Attempt missed. Domenico Criscito (Genoa) left footed shot from outside the box misses to the right. Assisted by Iago Falque.
Attempt saved. Manuel Lazzari (Lazio) right footed shot from the right side of the box is saved in the top centre of the goal. Assisted by Luis Alberto.
Corner, Genoa. Conceded by Stefan Radu.
Attempt blocked. Lasse Schöne (Genoa) right footed shot from outside the box is blocked.
Goal! Genoa 2, Lazio 3. Domenico Criscito (Genoa) converts the penalty with a left footed shot to the bottom right corner.
VAR Decision: Penalty Genoa.
Penalty conceded by Manuel Lazzari (Lazio) with a hand ball in the penalty area.
Corner, Genoa. Conceded by Patric.
Corner, Genoa. Conceded by Sergej Milinkovic-Savic.
Foul by Iago Falque (Genoa).
Luis Alberto (Lazio) wins a free kick in the defensive half.
Francesco Cassata (Genoa) wins a free kick in the defensive half.
Foul by Luis Alberto (Lazio).
Attempt saved. Joaquín Correa (Lazio) right footed shot from the centre of the box is saved in the top left corner. Assisted by Luis Alberto.
Attempt saved. Goran Pandev (Genoa) left footed shot from outside the box is saved in the top centre of the goal. Assisted by Lasse Schöne.
Attempt saved. Mattia Destro (Genoa) right footed shot from the left side of the box is saved in the bottom right corner.
Foul by Francesco Cassata (Genoa).
Luis Alberto (Lazio) wins a free kick in the attacking half.