Newcastle United face an FA probe over a bottle thrown from the stands at Crystal Palace fullback Aaron Wan-Bissaka.
Wan-Bissaka was hit by a plastic bottle thrown from the crowd in the second-half of their 0-0 draw.
It was in front of the section for away fans and it was witnessed by Newcastle owner Mike Ashley, who was watching the team for the first time since May last year.
Newcastle manager Rafa Benitez called it the actions of "one idiot from among nearly 3,000 fans".