Are Marc Rosset and Guillermo Vilas both tennis players?
Marc Rosset Marc Rosset (born 7 November 1970) is a former professional tennis player from Switzerland who is best remembered for winning the men's singles gold medal at the 1992 Olympic Games. He also won one Grand Slam doubles title at the French Open in 1992 partnering compatriot Jakob Hlasek.
1979 Australian Open – Men's Singles Guillermo Vilas was the defending champion, and successfully defended his title, defeating John Sadri 7–6, 6–3, 6–2 in the final to win the Men's Singles tennis title at the 1979 Australian Open.