Duke head coach Mike Krzyzewki argues with a referee after a foul was called on his players. (Mark Umansky/TheKeyPlay.com)

Hokies head coach Buzz Williams speaks with a referee in the second half. (Mark Umansky/TheKeyPlay.com)

Justin Bibbs looks up for an opening in the Duke defense in the second half. (Mark Umansky/TheKeyPlay.com)