Serena Williams was a professional tennis player who recently retired. She is known as one the best tennis players of all time. She has won 23 grand slam singles titles. Her and her sister Venus won a gold medal at the Olympics in 2000. She has been to the Olympics 3 times.

Roger Federer is a former Swiss pro tennis player. Federer won his first major singles title at Wimbledon at the age of 21. He retired in 2022. He won a gold medal in the 2008 Olympics. He won a silver medal at the 2012 Olympics.