Danish tennis player Caroline Wozniacki told how she spends the offseason. “Serena and I work in such a way that it will go down in history books! But you can see for yourself that we are inspired,” wrote Caroline on Instagram.

Danish tennis player Caroline Wozniacki told how she spends the offseason. “Serena and I work in such a way that it will go down in history books! But you can see for yourself that we are inspired,” wrote Caroline on Instagram.