Zlatan Ibrahimovic netted a brace for a 501-goal tally in club football to help AC Milan hammer Crotone 4-0 and reclaim top spot in Italy's Serie A from crosstown rivals Inter.
The Nerazzurri, who beat Fiorentina 2-0 on Friday to open Matchday 21, now sit two points behind Milan, with champions Juventus third, seven points adridt but with a game in hand.
39-year-old Ibrahimovic finished an exchange with Rafael Leao in the 30th minute to fire past visiting keeper Alex Cordaz and was unmarked when Theo Hernandez found him in the box on 64 minutes.
The Swedish star is now two goals behind Juve's Cristiano Ronaldo on the leading goal-scorers chart, after the Portuguese netted his 16th in Saturday's 2-0 win against Roma.
"This means that I scored a few goals in my career," Ibrahimovic told Sky TV at halftime.
"But the important thing is to help my teammates. My job is to score and help my team get goals."
Ibrahimovic's illustrious career includes titles in the Netherlands with Ajax Amsterdam, Italy with both AC and Inter Milan, Spain with Barcelona and France with Paris Saint-Germain.
Ante Rebic also enjoyed a brace, with a header and a fierce deflection, before exiting with Ibrahimovic.
"Looking at what (Ibrahimovic) does, how he trains and prepares for games, I am hardly surprised," Milan coach Stefano Pioli said.
"He is a champion. An athlete with immense motivation and he is very conscientious about his physique."
Also on 14 goals are Inter's Romelu Lukaku and last season's Golden Boot winner Ciro Immobile, who netted Lazio's winner in a 1-0 edging of struggling Cagliari.
Lazio moved to fifth and trail city rivals Roma on goal difference.
Elsewhere, Benevento and Sampdoria drew 1-1 in mid-table action.
Gianluca Caprari put Southerners Benevento ahead in the second half but Keita Balde flicked in Samp's equaliser with 10 minutes left.
The Genoa side remain 10th, four points above 14th-placed Benevento, with Bologna 13th on goal difference after Musa Barrow's brace and Riccardo Orsolini's effort sealed their 3-0 defeat of second-last Parma in a regional derby.
Ninth-place Verona lost 2-0 against Udinese as a Marco Silvestri own goal and a late Gerard Deulofeu effort lifted the hosts to 11th.