Wimbledon
Bundesarchiv. Wikimedia Do you like tennis? What is the oldest and the most famous tennis tournament in the world? Is it still played on grass? When does it take place? To check your answers click here . Current champions and records The American tennis player, Serena Williams holds an incredible number of Wimbledon titles. Do you know how many? Serena Williams by Rob Young. Wikimedia How about Roger Federer? Some claim he is the best tennis player in the world. Or perhaps it is Rafael Nadal. What is your opinion? How many Wimbledon championships has Federer won? And Nadal? ...