Asia represents tennis' emerging market, more mail

• Sam of San Diego has long-lost siblings: Federer and New Zealand freestyle skier Lyndon Sheehan, who is competing at the Sochi Olympics.

Jon Wertheim | Feb 19, 2014

Asia represents tennis' emerging market, more mail /

No. 15 Kei Nishikori, a four-time winner, is the highest-ranked Asian player on the ATP Tour. — No. 15 Kei Nishikori, a four-time winner, is the highest-ranked Asian player on the ATP Tour :: The Asahi Shimbun/Getty Images

• Sam of San Diego has long-lost siblings: Federer and New Zealand freestyle skier Lyndon Sheehan, who is competing at the Sochi Olympics.

Published Feb 19, 2014

JON WERTHEIM

Jon Wertheim is a senior writer for Sports Illustrated and has been part of the full-time SI writing staff since 1997, largely focusing on the tennis beat , sports business and social issues, and enterprise journalism. In addition to his work at SI, he is a correspondent for "60 Minutes" and a commentator for The Tennis Channel. He has authored 11 books and has been honored with two Emmys, numerous writing and investigative journalism awards, and the Eugene Scott Award from the International Tennis Hall of Fame. Wertheim is a longtime member of the New York Bar Association (retired), the International Tennis Writers Association and the Writers Guild of America. He has a bachelor's in history from Yale University and received a law degree from the University of Pennsylvania. He resides in New York City with his wife, who is a divorce mediator and adjunct law professor. They have two children.