WHO is the greatest tennis athlete? by Client Services | Mar 23, 2017 | Uncategorized | 0 comments GQ named who they think is the greatest. I would have voted for Serena. Who do YOU think is the greatest? GQ Greatest Tennis Athlete #matchmakertennis #charlottetennis #mmtennis #gq Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.