Steven Gerrard claims Aston Villa keeper Robin Olsen was assaulted by Manchester City fans who invaded the pitch on Sunday.
Pep Guardiola's team came from two goals down to clinch their fourth Premier League title in five years and celebrations spilled over at the Etihad.
Thousands stormed onto the pitch as they pipped Liverpool to the post and Villa boss Gerrard says at least one of his players was "attacked."