Zlatan scored 10 league goals from 18 league appearances in the previous season and has already bagged 15 goals from 16 starts this season.
Christian Eriksen scored only his second goal for Inter Milan to level the score and secure a point for the team.
Portuguese forward Cristiano Ronaldo will miss the crucial league game against Atalanta due to flexor problem
Indter Milan are close to winning their 19th serie A title after their win against Cagliari at Turin on Sunday.
Zlatan Ibrahimovic sent off after providing two assists in his teams 3-1 victory against Parma on Saturday.