# Felix Auger-Aliassime health concerns at US Open

> Live situation record from CLSTR: https://clstr.news/situations/felix-auger-aliassime-health-concerns-at-us-open
> Updated: 2026-09-03T09:20:00.000Z. Sources: 66. Developments: 2.

During the US Open, unseeded Russian player Karen Khachanov defeated third seed Felix Auger-Aliassime in the second round. Although the Canadian player won the first set, Khachanov won the subsequent three sets to secure the victory with a score of 6-7, 6-3, 6-2, 6-2.

Following the match, Auger-Aliassime reported experiencing unusual physical distress, stating he felt “dizzy and seeing spots” during play. He noted that these symptoms were distinct from typical fatigue or cramps and indicated a need for medical examinations to determine the cause of the sudden dizziness and visual disturbances. He further remarked, “I was dizzy, seeing spots, and couldn't recover.”

Auger-Aliassime has expressed a need for medical testing to identify the cause of this distress, noting that he initially hoped the symptoms were a temporary reaction to dehydration or heat. He emphasized the unprecedented nature of the incident, stating, “I had never felt like this before.”

## Timeline

### 2026-09-03: Felix Auger-Aliassime reports unusual physical symptoms at US Open

Felix Auger-Aliassime reported experiencing dizziness and visual disturbances during his US Open match against Karen Khachanov and plans to undergo medical examinations.

3 sources. https://clstr.news/cluster/felix-auger-aliassime-reports-unusual-physical-symptoms-at-us-open

### 2026-09-03: US Open 2026: Sabalenka and Pegula advance amid Auger-Aliassime upset

Major upsets and key victories define the US Open 2026, as Karen Khachanov eliminated Felix Auger-Aliassime and Aryna Sabalenka advanced to the round of 16 to defend her title.

64 sources. https://clstr.news/cluster/felix-auger-aliassime-to-face-karen-khachanov-at-us-open

---
Cite as: Felix Auger-Aliassime health concerns at US Open. CLSTR, https://clstr.news/situations/felix-auger-aliassime-health-concerns-at-us-open