Rivera knew he 'd heard the sound before but in a far different place - 140 miles away at Bank of America Stadium in Charlotte .
Carolina Panthers coach Ron Rivera was among those 20,000 people , attending his first North Carolina basketball game .
coach knew Ron Rivera 'd heard the sound before but in a far different place - 140 miles away at Bank of America Stadium in Charlotte .
Carolina Panthers coach Ron Rivera was among those 20,000 people , attending his first North Carolina basketball game .