Is the 2021 US Open the perfect time for the next generation of tennis to take over?

With two of the sports "big three" out at this year's US Open, the rising stars of tennis take aim at the year's final Grand Slam.

source https://www.espn.com/tennis/story/_/id/32102960/no-federer-nadal-opens-2021-us-open-next-generation-men-tennis