France, Sept. 30 -- World number two Iga Swiatek on Tuesday warned she might skip some of the top tennis events next season to protect her health.

The 24-year-old Pole spoke of her concerns for her fitness as the planet's top players compete in Japan and China - the "Asian Swing" as it is nicknamed on the circuit - before the season culminates for the men at the Paris Masters 1000 in November and the women at the WTA 1000 in Wuhan in China in October.

"I think people are more fatigued," said Swiatek after advancing to the last-16 at the China Open in Beijing following the retirement of her opponent Camila Osorio at the start of the second set.

Swiatek, the top seed, had claimed the opener 6-0 when the 23-year-old Colombian threw in the...