Heat of the Moment: When Tennis Becomes a Test of Endurance The scorching heat at the US Open has become a formidable foe for top tennis players.
Felix Auger Aliassime's second round loss to Karen Khachanov is just one in a series of high profile exits that highlight concerns about player welfare and competing in extreme conditions.
Auger Aliassame, seeded third, was forced to retire from the match due to heat exhaustion, which caused dizziness and spots.