One of McClain's lawyers said McClain, who is scheduled to begin an 18-day jail sentence on August 8, has appealed.
McClain was taken into custody at a park in April 2013 after he allegedly swore at police and resisted arrest. The arrest was McClain's third in 17 months.
From WHNT, who caught up with McClain as he departed City Hall on his way to Cowboys practice:
"I appreciate the people who continue to support me, and I'll continue to get my life on track and I'm already making the right decisions," said McClain. "This is just another bump in the road. I'm eager to get back to work with the rest of the team."
McClain, 25, last played in the NFL with Oakland in 2012. He started a combined 38 games over three seasons for the Raiders, who drafted McClain in the first round out of Alabama in 2010.
The Cowboys went 8-8 and missed the playoffs last season.
- Chris Johnson