On this week's MMA, I talk about Roger Federer's dominant week in Miami, easily beating Medvedev, Anderson, Shapovalov and Isner en route to his 101st title overall and second in 2019. Also, Novak Djokovic lost before the semifinals for the second consecutive tournament, this time to Roberto Bautista Agut. What went wrong with the world #1? Lastly, I take your questions on Rafael Nadal ahead of the this year's clay court season.