International officials are ranked by the badges they are awarded by the International Tennis Federation (ITF).
Meanwhile, the International Tennis Federation has named Djokovic and third-ranked woman Serena Williams as its 2012 world champions.
In South Africa, Britain's Elena Baltacha lost 2-6 7-6 6-4 to Jarmila Groth in the quarter-finals of the International Tennis Federation event in Johannesburg.
Elsewhere, the International Tennis Federation announced Thursday that Barbora Strycova has been handed a backdated six-month ban after testing positive for a banned stimulant.
There's also the International Tennis Federation, which governs the Grand Slam events, and dozens of other federations and management companies that both represent players and manage tournaments.
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The International Tennis Federation will select the remaining four teams.
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International Tennis Federation (ITF) president Christian Bimes said doping was taking place but was quick to point out that it was not as widespread as in other sports.
The International Tennis Federation, which organises the four Grand Slam tournaments as well as the Fed Cup and Davis Cup, said it would be in contact with the UAE's tennis federation.
The punishments handed down by the International Tennis Federation's Grand Slam committee could result in a U.S. Open suspension if Williams commits another major violation in any Grand Slam event in 2010 or 2011.
Recently, the game's top male players, like Roger Federer and Novak Djokovic, called for more stringent drug testing, prompting the International Tennis Federation to announce they were introducing biological profiling into the sport.
To make more sense of this, the International Tennis Federation, the game's law-makers, have produced a chart which simply matches the coefficient of friction (friction) and coefficient of restitution (bounce) to produce a court pace rating.
He was joined by fellow grand slam winners Roger Federer, Novak Djokovic and Rafael Nadal in demanding stricter tests and in March the International Tennis Federation announced it would be introducing a Biological Passport program - a more stringent control against doping.
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Despite the incident resulting in a one-month ban from the International Tennis Federation, a year later Tomic's father was railing at an Australian Open tournament director Craig Tiley so vehemently about the scheduling of one of his son's matches that security had to be placed around the official.
Despite the incident resulting in a one-month ban from the International Tennis Federation, John was up to old his tricks a year later -- railing at Australian Open tournament director Craig Tiley so vehemently about the scheduling of one of his son's matches that security was ultimately placed around the official.
The International Table Tennis Federation and the Peace and Sport Foundation are organizing an international tournament in Doha, Qatar in November, and they're hoping the unusual teams could help to develop understanding between feuding countries.
The International Table Tennis Federation wants to make it easier for people like Sahu to compete.
The bats have changed dramatically, with the pimpled side, used to return an opponent's spin with venom, reduced drastically by International Table Tennis Federation rules.
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