Helen Wills was a prominent American tennis player in the 1920s and 1930s. She was often called "Little Miss Poker Face" due to her stoic demeanor on the court. Some synonyms for Helen Wills include "Queen of Tennis," "The Great Wills," "The Mighty Atom," and "The California Comet." Her incredible talent on the court led her to win 31 Grand Slam titles and have a career winning percentage of over 90%. In addition to her impressive tennis career, Wills was also an accomplished painter and writer. She remains an inspiration to many athletes and women in sports today.