Your coach today is Bethanie Mattek-Sands, the rebel with accord, the owner of the ultimate boast of sporting bling, and Olympic gold medal. Good luck finding that among a trophy cabinet which boast nine Grand Slam titles, five of which were in the Women’s Doubles and four in the Mixed Doubles. Off the court, Bethanie is a force to reckon with, with dances that could take TikTok down, and a sense of fashion and flair which only Lady Gaga would dare.