Guillermo Vilas is a retired Argentine professional tennis player, born on August 17, 1952. He is widely regarded as one of the greatest players of his era, known for his powerful baseline game and exceptional shot-making skills. Vilas won four Grand Slam singles titles, including the French Open in 1977 and the US Open in 1977, and he was a key figure in popularizing tennis in Argentina. Throughout his career, Vilas achieved a total of 62 singles titles and was ranked as high as world No. 2 in the ATP rankings. He is also remembered for his intense rivalries with players like Björn Borg and John McEnroe. His contributions to the sport have left a lasting legacy in tennis history.