Paris Saint-Germain forward Lucas Moura says Bastia fans cannot go "without punishment" after he was hit by a missile in Friday night's Ligue 1 meeting.
Lucas was hit before he took a corner in the 68th minute of PSG's 1-0 opening day win, though Bastia have since accused him of making more of the situation.
"Lamentable, unacceptable what happened today in Bastia and it gets worse every year," Lucas tweeted. "This gesture cannot go unnoticed and without punishment. That is not football."