Douglas Costa received a straight red card after a video review showed the Brazilian spat at Sassuolo's Federico Di Francesco.
MILAN — Cristiano Ronaldo scored his first goals for Juventus in its 2-1 win over Sassuolo but his big day suffered a rather ugly mark thanks to his teammate, Douglas Costa.
Costa had seemingly elbowed Sassuolo's Federico Di Francesco in the buildup of one of Juventus's goals and, as the pair continued to argue, the Juventus midfielder appeared to headbutt his opponent.
Costa was lucky to only be shown a yellow card at first but he received a straight red moments later after video review showed he had also spat at Di Francesco. The Brazil international risks a lengthy ban.
Costa took to Instagram after the game to try and apologize to the fans and his teammates for the incident, writing in Portuguese and Italian that his actions on Sunday aren't a reflection of who he has been for his entire career.
Juventus, which is seeking a record-extending eighth successive Serie A title, is the only team still with a perfect record. It was Sassuolo's first defeat of the season.