The 33-year-old was considered over the hill when he left West Ham United for Chinese side Shanghai SIPG in 2019, but was brought back by Bologna in 2021.
He has gone from strength to strength, finding the net 14 times in 33 Serie A games last season.
That was enough to earn him a place in the spotlight this summer, when Manchester United approached Bologna to ask about purchasing the veteran.
Juventus were also heavily linked, but Bologna refused to let Arnautovic leave and that has proved to be a very wise decision.
Bologna scored five goals in five Serie A games and all of them were credited to Arnautovic.
It means that if he ends Week 5 on top of the scorer’s charts, he will be the first Austrian Capocannoniere in Serie A since Toni Polster for Torino in December 1987.