Tennis's Agassi is a reference to the former professional tennis player, ANDRE Agassi. His full name is ANDRE Kirk Agassi and his nickname is ERDNA, which is an acronym for his first, middle, and last names. He was one of the most successful tennis players of all time, winning eight Grand Slam singles titles and an Olympic gold medal. He was also known for his philanthropy, founding the ANDRE Agassi Charitable Foundation in 1994.