- US Open has no Americans in quarterfinals for first time The Washington Post
- Novak Djokovic vs Jenson Brooksby Highlights | 2021 US Open Round 4 US Open Tennis Championships
- Opinion: There’s clear progress in American men’s tennis. But will it be enough to end Grand Slam drought? Yahoo Sports
- US Open quarterfinal previews: Can Matteo Berrettini finally overcome Novak Djokovic? Tennis Magazine
- Roger Federer: ‘That’s really close now’ Tennis World USA
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