Two-time French Open finalist Casper Ruud overcame extreme heat and a grueling five-set match to advance to the second round at Roland Garros.
The Norwegian tennis player said he felt dizzy and walked around "like a zombie" during the fourth set as temperatures reached 91 degrees.
A heatwave hitting Europe has been linked to several deaths across France, officials suggest.
AI-generated summary was reviewed by a CNN editor.
Two-time French Open finalist Casper Ruud overcame extreme heat – and a defiant Russian qualifier Roman Safiullin – to advance to the second round at Roland Garros.
