David Calabria scored AC Milan's third fastest goal in the Serie A since the 2004-05 season, after Rafael Leao and Sulley Muntari.
Calabria opened the scoring for the Rossoneri after 28 seconds into their clash against Atalanta as they later grabbed a 3-2 victory on Sunday.
Leao's six seconds strike against Sassuolo remains Milan's fastest league goal in 16 years while Muntari's 18 seconds opener against Juventus is the second-fastest.
Goals from Sandro Tonali and Leao later in the game helped the visitors overcome a late comeback at Gewiss Stadium, with Atalanta scoring two late goals in the 86th and 94th minutes.
The victory stretched Milan's unbeaten streak in the Italian top-flight having won six and drawn one of their last seven matches this term.
They are second in the league table with 19 points after seven outings and they trail leaders Napoli by two points.
Sunday's encounter had three African stars in action with Fode Ballo-Toure, Franck Kessie and Ismael Bennacer playing crucial roles in the securing maximum points for Pioli's side.
After helping AC Milan make a bright start in Bergamo, Calabria praised his team as the best in Italy and he highlighted the quality that has made them equal their best start in the Serie A since they clinched the top-flight crown in the 2003-04 season.
“There are many strong sides in Italy, but in my view, there are no better teams than Milan in Italy,” Calabria said, per Football Italia.
“We have to focus on ourselves and continue to believe we are the best. There are games and moments that change throughout the season, but we’ve got to keep riding the positive wave while we’re here. Then we’ll see what happens.
“He gives us faith, he has a clear idea of football that allows all of us to give our best. Intensity is the most important characteristic, as we can keep up the tempo for the whole match and that high press is really bringing results.”
teamplayer
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Their's a work in the squad, mentality and fatigue are our weak point right now. our champions league games and this game are a common examples. Forza Milan