All types of sports are popular globally, but what sports can we call THE most popular in the world? Some of the answers may surprise you.

It's no surprise that football, or what Americans call "soccer" is the world's most popular sport to play and to watch. An estimated 3.5 billion people either watch or play football. The World Cup is the global championship of the sport and this tournament is played every four years. The World Cup itself is one of the highest rated sports on television, with many countries tuning in en masse to watch their country's team play. Football is popular in all of the UK, Europe, Asia as well as South America. However, with so many other sports being popular, the Unites States still lags behind in their interest in "soccer".

Next, we have cricket. This sport which consists of a bat and a ball, has been around for hundreds of years and originated in England. The sport is 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. An estimated 3 billion people watch or play cricket each year.

The next most popular sport is a sure surprise, and that is field hockey, with an estimated 2 billion players or watchers, mostly in Asian countries, European countries, Australia and around Africa. This sport tends to be played in high schools in the United States, usually by girls only.

Coming up next is tennis. Not so surprising, but there are an estimated 1 billion players and watchers of tennis around the world. Tennis tends to be popular in richer countries, including the United States, Asian countries, Australia and Europe. There are four main tournaments in tennis, called "Grand Slams" at which players from many countries play. The first is the Australian Open, then the French Open, Wimbledon and then the US Open in late August. The Grand Slam tournaments tend to get the most attention during the tennis season.

Next we have volleyball. Yet another surprise, with an estimated 900 million viewers or players around the world. Volleyball is popular in the United States, where the sport originated, as well as in Brazil, all over Europe, Russia, China and Japan. Volleyball is a popular high school sport in many countries due to it's team centered play and lack of specialized equipment requirements.

Also popular is table tennis, otherwise known as Ping Pong. This is another surprisingly popular sport around the world, with an estimated 900 million watchers or players. Table tennis originated in England as an after dinner activity for Victorians in the late 19th century. Table tennis as a competitive sport is popular in many countries but is especially popular in China, Korea and Singapore.

After these sports, we have a triumvirate of more mainstream American sports including baseball, golf, American football and basketball, with each sport attracting between 400 and 500 million players or watchers worldwide.