After playing into the early hours of Sunday in a match that lasted over three hours, Roger Federer says he may not continue playing in the French Open as he seeks to protect his knee.
원문출처 : https://www.cnn.com/2021/06/06/tennis/roger-federer-knee-french-open-spt-intl/index.html
원문출처 : https://www.cnn.com/2021/06/06/tennis/roger-federer-knee-french-open-spt-intl/index.html