Ex-NFL QB Trevone Boykin was just sentenced to 3 years behind bars after he plead guilty to charges stemming from an incident where he roughed up his GF ... TMZ Sports has confirmed.
Boykin -- a former TCU superstar -- was accused of choking and breaking the jaw of his girlfriend, Shabrika Bailey, during a fight back in 2018.
Trevone was facing DECADES of prison time after he was hit with two felony charges in the case ... and, to make matters worse for the 26-year-old, he was also arrested again months later.