Earlier tennis was regarded as a game for the English upper class. It was played on a lawn or clay field.
In earlier times, the rackets were made of wood and had a standard size. In recent times, different metal alloys have been introduced in use for frame manufacturing, making wood obsolete. In later half of the past century, the color of the ball was changed from white to bright yellow or green for the sake of better visibility.
Tennis is part of the Olympics and the Commonwealth games and is equally popular among all ages.
Although tennis is still enjoyed by the wealthier people who join tennis clubs, nowadays it is much more accessible to just about any sports lover. It is a clean sport, without fouls and it has lots of fans around the world. There are regular Open tournaments like the one at Wimbledon in England, Roland Garros in France or Melbourne Park at the Australian Open. Davis Cup is an international competition which counted 133 countries in 2010 and is an event supported by the International Tennis Federation (ITF).
The first Grand Slam of every year is Australian Open at Melbourne. At singles category, this year, the runners-up were rewarded $1,050,000 and the winners $2,000,000. Quatar Open has been rewarding players with a total of $2,500,000 since 2008. At Swiss Indoors Basel, organized for males' category, the prize money is €1,225,000.
Notable tennis male players include John McEnroe, Boris Becker, Mats Wilander, Stefan Edberg, Jimmy Connors, Andre Agassi and more recent Roger Federer. Some of the best female players of all times were Martina Navratilova, Steffi Graf and Monica Seles.
In 2008, Roger Federer received $41,8 million, Maria Sharapova, $26 million and Rafael Nadal, $18 million.
Tennis is one of the sports that will always be played both at professional level and amateur. It's a sport without age.