Gets 15 Years to Life in Prison

Ex-NFL star Dana Stubblefield was has been sentenced to 15 years to life in prison for raping a mentally disabled woman in 2015 incident, court officials tell TMZ Sports.

Back in July, the 49-year-old was found guilty of forcible rape while using a gun -- a crime that carries 15 to life.

And on Thursday, the judge sentenced Stubblefield to exactly that - meaning he'll have to do a minimum of 15 years behind bars. Stubblefield was present in the courtroom when the sentence was handed out.

As we previously reported, 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…