Joe Mixon appeared in an Ohio courtroom on Wednesday to fight back in his aggravated menacing case ... pleading not guilty to the misdemeanor charge he was hit with earlier this month.
The NFL star wore a white button-down shirt and dark pants for the occasion ... and said nothing to reporters neither during his arrival nor during his exit at his arraignment hearing in Hamilton County.
During the proceedings, Mixon entered his plea ... and his bond was set at $10,000.
As we reported, Mixon was initially charged with aggravated menacing on Feb.