# US Open: Felix Auger-Aliassime beaten by Karen Khachanov in second round

> **Open Intelligence Dossier** · First detected: 2026-09-03 21:07 UTC · Category: Sports

## Executive Summary
Félix Auger-Aliassime crashes out of the U.S. Open in a shock second-round upset against Karen Khachanov.

## Intelligence Brief
Recent sports reporting details a significant second-round upset at the U.S. Open tournament involving third seed Félix Auger-Aliassime and Karen Khachanov. The third seed and former semi-finalist unraveled during the competition, leading to his early exit from the tournament after being defeated by Khachanov. Media coverage heavily emphasizes the unexpected nature of the defeat, characterizing the exit of the title contender as a major shock in the tournament. Specific outlets such as Yahoo Sports and The New York Times frame the defeat as an unraveling of the high-seeded player, while the ATP Tour and the BBC document Khachanov sending the third seed packing.


Additionally, Puntodebreak highlights post-match remarks where the player described an unusual physical sensation and expressed a need to undergo medical testing following the match. The context provided by the reporting establishes that the athlete arrived at the tournament carrying expectations as a former semi-finalist and a prominent title contender. However, the unexpected second-round elimination abruptly halts his progression at the major tennis event. The coverage does not yet specify the exact medical results or any long-term consequences of the physical issues reported by the player after the loss. Upcoming coverage will likely track further updates regarding the requested medical testing mentioned by the player in post-match statements.


Observers and fans will also monitor the subsequent rounds of the U.S. Open to see how Karen Khachanov advances following this major victory. The published articles do not yet detail the specifics of future tournament pairings or further official statements from the athletic camps.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| CBC | Felix Auger-Aliassime bounced from U.S. Open in 2nd round | [Source Link](https://news.google.com/rss/articles/CBMijgFBVV95cUxNUDhPeGJuRXhRSEFsV1hqeTlQUW9RSV92T2NwenRidTRBU014aVdCbG5BaHMza3k4b0Z1ZGRwWHpvTjRuc3lHTTU0VG5NNGpmNjRTZGtKanZTYU5JQkNteFIyQTJrcU9NdndsQWdqYjZ3U25BUXZfcS1DSW1EYUh3U1pDMTJDTThOenM4amxR?oc=5) |
| Puntodebreak | Auger-Aliassime: "I have never felt anything like this, I need to get tested" | [Source Link](https://news.google.com/rss/articles/CBMitwFBVV95cUxPRFZ6bHE4UWZJaWFjV1VaMnJRTUxkYVZzREd3NHVncjFYMkpQZmplTzNZemVlNHZ4Zzd5QkxGMl9zTlFwUkJnWDlEdi1oU1NkNzJUTDdNVFFCb185Zmgtemp4NF9EejI0aXd5cnpWdzBCLUhSMGRNTDA1QnNrbEJTODFzc0wxY0RQcFdmS2N5N2JWbHE0VjJXYXdGYWFxUVhqcUNRb05PVC11dnpqSGFhWjNqWUdob3M?oc=5) |
| Yahoo Sports | US Open title contender and former semi-finalist crashes out in second-round shock | [Source Link](https://news.google.com/rss/articles/CBMihgFBVV95cUxQako1a0lrZXVTMXlxSjBYbmIxekFTdngwOXcyakkzU2g1ZEF1VnhpYUZrVUVqUlpjT0s1OFc5TmIzZTNseF9VR1NScGJ2U3phazg3d0xsV0kxdHNUaDd6ZXJOU1RxaUhlQlBqYjg2aW8zU2REU2lySFk4LUxlVWJnaUFFSXQ2UQ?oc=5) |
| ATP Tour | Khachanov sends third seed Auger-Aliassime packing at the US Open | [Source Link](https://news.google.com/rss/articles/CBMihgFBVV95cUxNQk4tMUVJV1AtZlJ5cVdkc2hfLWxiQVRsdlZCODh6RVJPNkxpT3kyMFVsYUY3aEVmcEpWUnpnUi0zb1ViRW1BcXdfNDdBekNuTlhJRmtCMDZEbktELTE3RktxWkw1eDRoVmFnYWctd1pHSlF2ZWpPenduUVdHMkhzRGs2WFFDZw?oc=5) |
| The New York Times | U.S. Open No. 3 seed Félix Auger-Aliassime unravels in upset loss to Karen Khachanov | [Source Link](https://news.google.com/rss/articles/CBMioAFBVV95cUxQWmhEamlCUGxEcURqTEZ3YkROZUJaYlFrMHZYYzNkekZKbi1Gd1lUanQwZXIwdVA2RlJUeExIT0ZQX3FFdmY3QmNsNHM2OHBSSkFkN0hBZ3cwS3lEME9Oazk2em1xdllzTlo3WDRkT1JZUGZ4TFhTMlVpMm9KSkVnbFZyU1RRUTlsQjdIanEzQnJUeFZ3b0hfdHF5ODFRV2RX?oc=5) |
| BBC | US Open: Felix Auger-Aliassime beaten by Karen Khachanov in second round | [Source Link](https://news.google.com/rss/articles/CBMiZEFVX3lxTE5mYzExNkk4V0lyeEdoME54UGxUc3p1RjRFN1U5QmE4b1lmRDBQU2t2YlVnM0VMWm0talRKRnUzMjVvTWdlak5TSnhuRGtxa2VHLUFtVm9zeWRQQmIwRXFRVlNTVXM?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-09-03/us-open-felix-auger-aliassime-beaten-by-karen-khachanov-in-second-round*