Yesterday I went to lunch at the tennis club where my dad goes to play with his friends, and during lunch a discussion arose about who has the best two-handed backhand on tour. 4 of us said Zverev, while the other 3 were convinced it was Sinner. My dad says that Jannik has already the 3rd best backhand in history after Agassi and Nalbandian, also for him prime Djokovic backhand is really good but highly overrated. I think it's too early to consider Sinner's backhand already in the top 3 in history. What do you think?