Arnautovic attacks European media at first Shanghai SIPG press conference
The former West Ham forward sealed his controversial move to the Chinese Super League for 23 million pounds, with a reported 280 thousand pounds-a-week salary.
The 30-year-old forward scored 22 goals in 65 appearances for the London club.
Arnautovic will wear number seven shirt left by Wu Lei who joined La Liga side Espanyol in January.
Brazilians Oscar and Hulk will be among Arnautovic's teammates at the club coached by Vitor Pereira.
Shanghai SIPG are currently in third place in the Chinese Super League, behind Beijing Guoan and Guangzhou Evergrande.