On this week's Mailbag, Gill Gross is joined by Abigail Johnson to answer your comments. First, we'll discuss the breakout weeks for teenagers Jakub Mensik and Joao Fonseca. We'll react to Holger Rune reuniting with Patrick Mouratoglou as head coach. Then it's to the comment section: how can Jannik Sinner be defeated, why is Andy Murray slumping, are tennis players becoming robotic, can serve and volley make a comeback, why is Lorenzo Musetti struggling, should something be done about Andrey Rublev's self-harm habit, Botic Van de Zandschulp's code violation, singles players ruining doubles draws and Emma Raducanu discourse.