Mateo Retegui is the top scorer in Serie A with 13 goals
Juventus have continued their unbeaten start to the Serie A campaign but were held to a 13th draw in their opening 20 games by Atalanta.
Pierre Kalulu fired in from a tight angle to put Juve ahead but Atalanta forward Mateo Retegui marked his return from injury with a diving header to equalise with his 13th goal of the season.
It was a third consecutive draw for Atalanta, who are third in the table, level on points with Inter Milan - who have two games in hand - and four points behind leaders Napoli.
Atalanta could have scored more but Ederson had a low shot palmed away by Juve goalkeeper Michele Di Gregorio, while Ademola Lookman's effort was cleared off the line by Teun Koopmeiners.
Juve, who are the first side to draw 13 of their first 20 games in a Serie A season since Inter in 2004-05 (W6 D14 L0), are fifth in the table, 13 points off the top.
The most draws in a Serie A season is Mantova's 22 in a 34-game season in 1966-67.
Meanwhile, AC Milan are seventh after coming from behind to beat Como thanks to goals from Theo Hernandez and Rafael Leao after Assane Diao had opened the scoring for the home side.
