Ex-49ers running back Jarryd Hayne -- who's also an international rugby star -- was arrested in Australia for aggravated sexual assault and now faces up to 20 years in prison.
Officials say the accuser is a 26-year-old woman who claimed she hooked up with Hayne on Sept. 30 in what started as a consensual sexual encounter. She claimed the two met online.
But, at some point during the incident, the woman claims Hayne's actions turned criminal and she suffered injuries as a result.
Cops investigated the matter and ultimately determined there was enough evidence to charge Hayne with a crime -- "aggravated sexual assault inflicting actual bodily harm.