A cop forcefully grabbed Green Bay Packers star AJ Dillon and shoved him in the back during a soccer game at Lambeau Field this weekend ... and now, police say they've launched an internal review into the matter.
The incident happened on Saturday -- when during a weather delay at the Manchester City vs. FC Bayern match, Dillon hopped down onto the field in order to rile up fans in attendance.
According to Dillon, two security guards gave him permission to be on the field, and even helped him get down from his seat "so I could do a lambeau leap and hype up the crowd.