Congratulations to Bianca Adreescu for winning her first U.S. Open and career Grand Slam singles title!  We share our thoughts and insights on Andreescu, including: Will she be the dominant champion for years to come; and be the true successor to Serena? Share with us your thoughts below in the comments section.     Tags: tennis, rock, rally, podcast, career, 2019, U.S., Open, Andreescu, Serena, Osaka, Halep, Kerber, Nadal, Indian, Wells, Rogers, physical, mental, champion, grand, slam, major, adjust, defense, offense