Little did we know, at the 1975 #WTAFinals in Los Angeles, just quite how legendary billiejeanking, chrissieevert and martinanavratilova would become. This week in Cancun, the singles champion will receive the Billie Jean King Trophy, the doubles winners will collect the Martina Navratilova Doubles Trophy, and bragging rights for the Chris Evert World No.1 Trophy are also on the line. #WTA50 #JustStarting