NBA Slam Dunk Contest: Zion Williamson leaves door open for potential appearance in event: 'You never know' | CBS Sports Headlines NBA Slam Dunk Contest: Zion Williamson leaves door open for potential appearance in event: 'You never know' Williamson is ninth in the NBA in total dunks on the season … Continue reading NBA Slam Dunk Contest: Zion Williamson leaves door open for potential appearance in event: 'You never know'