TMZ Sports has obtained the police report from Tre Mason's encounter with police on July 23rd -- which details strange behavior, a violent outburst and more evidence of mental illness.
We broke the story ... cops in Palm Beach, FL had visited the NFL running back 5 times in 4 months after his family reported a string of bizarre behavior, concerned about his mental health.
Now, we know more from the July 23rd incident -- and it's clear he's not in good shape.
According to the report, filed by the Palm Beach County Sheriff's Office .