UFC champ Jon Jones left rehab after one night ... this according to the fighter's mother.
Camille Jones spoke with WBNG in Binghamton, NY -- and said Jon will attend the Colts vs. Patriots game this weekend to watch his two brothers (who are on separate teams) battle it out on the field.
Camille did not explain why Jones made the decision to leave the rehab center so soon -- especially after testing positive for cocaine after his UFC 182 fight against Daniel Cormier.
His mother told WBNG she's glad he got caught in the first place.
"This stopped him in his tracks, this let him know that he may need to change some friends ... because everyone is not for you for the best," Camille said.
"Me and my husband considered [the positive test] a blessing from God that our child was able to be helped and know that he need to stop and know that he needed the assistance to stop before it came to something worse."
According to Camille, the unannounced drug test came the day after Jon was hanging with friends and "did something he shouldn't have done."
Camille says she spoke with Jon right after the positive test -- "My first question was, do you have a problem, a serious problem? And then he told me what happened. Jon is usually very honest with me, so he told me what happened. I was like, good for you ... good. You needed to be caught, it was just timing."