Question: 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
Sentence (from "Guillermo Vilas"): 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.
Relevant evidence: No