Step 1 : Introduction to the question "At what sport did Arthur Ashe excel?"
...Tennis is an international sport followed by fans around the globe. Arthur Ashe was one of the sport's greatest and the first African-American ranked No. 1 in the world and the first black man to win the men's singles at the U.S. Open and Wimbledon. Ashe remains the only African-American man to ever reach No. 1 in the ranks of professional tennis players in the world. Ashe sadly died Feb. 6, 1933. Source: Biography.com