What is the website that is an offshoot of the magazine which, in 2005, ranked Guillermo Vilas as the 15th-best male player of the preceding 40 years
Guillermo Vilas Guillermo Vilas (] ; born 17 August 1952) is a retired professional tennis player from Argentina, N°1 of the Grand Prix tennis circuit's Season in 1974, 1975 and 1977, who won four majors, seven Grand Prix Super Series titles and 62 ATP titles. He was inducted into the International Tennis Hall of Fame in 1991. Known for his prolific match play, especially on clay, he became the second man to win more than 900 matches in the Open Era, and his number of match wins on clay are by far the most of the Era. His peak was the 1977 season during which he won two major titles (both on clay), had two long match win streaks of 46 all-surface and 53 on clay, and finished with an Open Era record of match wins. In 2005, Tennis magazine ranked him as the 15th-best male player of the preceding 40 years. He also popularized the between-the-legs tweener shot, also known as the "Gran Willy" in his honor.
Association of Tennis Professionals The Association of Tennis Professionals (ATP) was formed in September 1972 by Donald Dell, Bob Briner, Jack Kramer, and Cliff Drysdale to protect the interests of male professional tennis players. Drysdale became the first President. Since 1990, the association has organized the worldwide tennis tour for men and linked the title of the tour with the organization's name. In 1990 the organization was called the ATP Tour, which was renamed in 2001 as just ATP and the tour being called ATP Tour. In 2009 the name was changed again and is now known as the ATP World Tour. It is an evolution of the tour competitions previously known as Grand Prix tennis tournaments and World Championship Tennis (WCT).