Indianapolis Colts starting linebacker D'Qwell Jackson was found guilty Monday of simple assault in Washington, D.C.
He has a sentencing hearing scheduled for April 6.
Jackson had been accused of punching a pizza delivery driver in the face over a parking space in February 2015.
He could get up to 180 days in jail. Jackson could also be disciplined by the league for violating the personal conduct policy.
"I apologize for adding another distraction for this team," Jackson said in April 2015. "I'm very fortunate to do what I do. I love what I do and I'm passionate."
The incident took place around 8 p.m.
According to police reports, the pizza delivery driver said he told Jackson he was going to use his parking space momentarily, but Jackson got upset and told the driver to get the "expletive" away before striking him in the face and on the back of the head.