clay and brown for dirt. The league's technicolor playing surface served as a trendsetter for the rest of the tennis world. The Indian Wells Masters has purple courts. Over time, lines were introduced to WTT's courts, purple replaced the brown and they reverted to traditional solid-colored courts. But in 2006, the league returned full-time to the signature calico/checkerboard pattern. In 2019, the league made efforts to modernize and update its look and branding, including a switch to a deep blue playing surface and gray outer court. In partnership with DecoTurf, these colors were determined to be the best for livestreaming and television. First league Founding WTT was founded in 1973 by Dennis Murphy, Dick Butera, Fred Barman, Jordan Kaiser, and attorney and promoter Larry King, each of whom organized and owned the various participating teams of the fledgling professional tennis league. Murphy had previously founded the World Hockey Association, and gave a number of WHA club owners preferential options on WTT franchises. Charles "Chuck" Reichblum (now popularly known as "Dr. Knowledge"), industrialist John H. Hillman III, and lawyer William "Bill" Sutton, who became the owners of the Pittsburgh Triangles, had, in 1972, founded the similar National Tennis League (NTL), a forerunner to WTT and Reichblum's brainchild. Founding members of WTT were reported to have been invited to join the NTL prior to formation of the competing WTT in 1973. Teams, 1974–1978 In 1974, Billie Jean King began the first WTT season by securing the professional women tennis players. Dr. Leonard Bloom, Arthur Ashe, and Wilt Chamberlain helped to secure the professional men tennis players. Two WTT players, Connors and Goolagong, were not allowed to participate in the 1974 French Open due to their associations with WTT. Connors' exclusion from the French Open denied him the opportunity to become the first male player since Rod Laver to win all four Major singles titles in a calendar year. The league began play in May 1974, with George MacCall as Commissioner of the 16 teams, many with tennis-themed nicknames. The Eastern Division consisted of the Atlantic Section: Baltimore Banners, Boston Lobsters, New York Sets, Philadelphia Freedoms; and the Central Section: Cleveland Nets, Detroit Loves, Pittsburgh Triangles, Toronto-Buffalo Royals. The Western Division consisted of the Gulf Plains Section: Chicago Aces, Florida Flamingos, Houston E-Z Riders, Minnesota Buckskins; and the Pacific Section: Denver Racquets, Hawaii Leis, Los Angeles Strings, San Francisco Golden Gaters. Following the