On this week's Mailbag, Gill Gross answers your comments on: Novak Djokovic's motivation post-US Open default, Stefanos Tsitsipas's recovery after heartbreaking loss in New York, lower temperatures at the French Open, a resurgence for the single-handed backhand, if tennis is enhanced by commentators, getting introspective on my life as a YouTube tennis analyst, thoughts on Lorenzo Musetti, will anyone currently on tour win 10 majors, will fans lose interest after the Big 3 retire, Andy Murray expectations, Andrey Rublev's tactics, parent coaching, comparing Roger Feederer's Wimbledon 2019 loss to Alexander Zverev's US Open 2020 loss.