John Isner: Tennis? Zion Williamson would excel Unknown 00:18 Zion Williamson playing tennis "would be scary," said Miami Open finalist John Isner as he likened the star freshman to LeBron James. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsVideo: Tigres 'keeper casually chests down halfway line attemptBrexit in Football Manager 2018: Scenarios, dates & how the game predicts the futureLewandowski out of Bayern trip to CelticRowing with staff and playing against nobody - Given lifts the lid on 'weird' Mancini methods at Man CityMartial happy at Man Utd despite lack of starts - BaillyVideo: Zidane not giving up on La Liga title
