On The Mailbag, Gill Gross answers your comments, including: rating the WTA's one-slam winners of the last decade, my favorite matchups on tour, what could separate Carlos Alcaraz from Jannik Sinner long-term, why is Serena Williams considered the GOAT when Steffi Graf has statistical advantages, what improvements has Daniil Medvedev made this year, how do Alcaraz and Sinner stack up on clay, what is the potential of TopSpin SK25 the video game, how players manage themselves during rain delays, why my old videos are deleted, why is Dominic Thiem still struggling, how will the proposed Super Tour effect lower ranked players, should catching tosses be legal, why am I wearing a hat?