Tennis has continued to grow into a powerful global sport. It performs in international venues and has been a major platform for both men's and women's sports. There are billions of dollars behind the ATP and WTA tours, television, broadband coverage and traditional participation.
Some of the people who shape tennis are CEOs who are investing millions. Others have influential visions through their powerful positions or rhetoric.
There are also powerful tennis broadcasters, ex-players and modern stars with great commercial and sports brand appeal. There's a wide variety of factors and participants.
Who are the powerful figures that most influence tennis?