Kostyuk causes testosterone row with claims about Sabalenka and Swiatek

A leading women’s tennis player has come under fire for suggesting the reason Aryna Sabalenka and Iga Swiatek are so good is because they have higher levels of testosterone.

Original Source:

https://www.telegraph.co.uk/tennis/2025/10/22/kostyuk-testosterone-levels-row-claims-sabalenka-swiatek/