Former Wimbledon finalist Radwanska retires from tennis

Radwanska says she's not leaving tennis completely, adding "it's time for new challenges, new ideas, equally as exciting as those on the tennis court, I hope." Last year Radwanska married her coach and sparring partner, Dawid Celt.

Poland's President Andrzej Duda took to Twitter to wish her good luck and to thank her for all the "successes and wonderful promotion of Poland on courts across the world."

AP