Ex-NFL star Dana Stubblefield was just found guilty of raping a mentally disabled woman stemming from a 2015 incident ... and now faces up to life in prison.
49-year-old Stubblefield was first arrested back in May 2016 after officials say the former 49ers superstar raped a woman he found on a babysitting website and had invited to his Santa Clara, CA home for a job interview.
Stubblefield had argued the sex was consensual -- and claimed he can prove it with a lie detector test.