Carlos Alcaraz hits a behind-the-back shot during his 2022 US Open quarterfinal match against Jannik Sinner.Robert Deutsch-USA TODAY SportsWhen you buy through our links, Insider may earn an affiliate commission. Learn moreThe 2023 US Open tennis tournament continues today. Top-seeded Carlos Alcaraz might still be high off winning a Wimbledon Championship after felling Novak Djokovic, but he was on the losing end of that battle at the recent ATP Masters 1000 tournament.