estimated 900 million watchers or players,

estimated 900 million viewers or players around the world, popular in the United States, where the sport originated, as well as in Brazil, all over Europe, Russia, China and Japan.

estimated 1 billion players and watchers of tennis around the world, tends to be popular in richer countries, including the United States, Asian countries, Australia and Europe.

estimated 2 billion players or watchers, mostly in Asian countries, European countries, Australia and around Africa.

estimated 3 billion people watch or play cricket each year, popular in the UK, Australia, New Zealand, some African countries, some Caribbean countries and it is the most popular sport in the countries of India and Pakistan.