The victim was taken to a local hospital on Monday with non-life-threatening injuries, according to the San Jose Police Department.
Police provided few details, except that the incident took place near the intersection of Monterey Highway and Bailey Avenue. CNN requested a police report, but did not receive one until Tuesday afternoon.
“The motive and circumstances surrounding the incident are still being investigated,” San Jose police said.
Delaney Murray of the Santa Clara County Attorney’s Office said: “Our service has not yet received the police inspection report and therefore there is no information about Mr Velazquez. No charges have been filed so far. “
Going to jail shows that no bail has been set and a court hearing is possible on Wednesday.
The mixed martial arts professional had 12 wins by knockout, two by decision and two title defenses, according to his UFC profile. Velázquez had three losses.