The Nerazzurri's victory was largely thanks to a stunning goal from Hakan Calhanoglu, who scored from the edge of the penalty area. The Turkish midfielder's shot was too much for Monza goalkeeper Semuel Pizzignacco to handle.
Monza had equalized through Gustavo Varela, but Inter regained the lead through Piotr Zielinski before Francesco Pio Esposito scored a clever goal to make it 3-1. Yann Bissek sealed the win with a late goal, beating the goalkeeper with a shot that changed direction mid-air.
Meanwhile, Napoli started the season with a late 2-0 win over Genoa, thanks to goals from Kevin De Bruyne and Antonio Vergara. De Bruyne's goal was particularly notable, as he set up Johan Vasquez in the penalty area with a shoulder nudge and then scored from close range. Noa Lang came on as a substitute for Napoli and played a part in the second goal.
Justin Bijlow, the former Feyenoord goalkeeper, had a strong game for Genoa, keeping the ball out for a long time before conceding the first goal.
Inter's victory was a strong start to the season for the reigning champions, who are expected to be among the favorites to win the title again.