After the former Chelsea midfielder appeared twice to fire the ball deliberately at Guangzhou players on Sunday, he was rushed by several opponents. Oscar fell to the ground and a melee broke out around him.
The Chinese Football Association issued lengthy bans to four players, including the 25-year-old Oscar, and fined him 40,000 yuan ($6,000).
Oscar, who was not booked at the time of the scrap, is one of the most high-profile players in the Chinese Super League (CSL) after he joined SIPG for an Asian-record 60 million euros this season.
Oscar will not return to CSL action until late August. Among the games he will miss will be against Guangzhou Evergrande on July 22, as Andre Villas-Boas's second-placed SIPG attempt to keep up the pressure on the league leaders.
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"It very badly impacted the Chinese Super League match," the CFA said in a statement, referring to Oscar's key role in the dispute in which players, coaching staff and substitutes poured off the benches and waded in.
One of them, Shanghai's Fu Huan, was banned for six CSL games, and red-carded Guangzhou R&F player Li Tixiang got five games.
Guangzhou's Chen Zhizhao, who seemed to push Oscar to the floor, was banned for seven league games and both clubs were fined and warned about their behaviour.
Oscar was unhurt and the fiery encounter finished 1-1 to leave SIPG four points behind reigning champions Guangzhou Evergrande.
Villas-Boas defended Oscar afterwards, saying he was "just being passionate", and Oscar denied he purposely aimed the ball at R&F players.
The CFA is not afraid to hand out stiff punishments to protect the reputation of Chinese football.
In March it hit Qin Sheng of Shanghai Shenhua with a six-month ban for stomping on Belgian international Axel Witsel.
Disclaimer: No Business Standard Journalist was involved in creation of this content