The importance of closing out matches in tennis; more mailbag

• The USTA announced that single-day tickets for the U.S. vs. Italy Fed Cup World Group first-round tie are now on sale.

Jon Wertheim | Jan 17, 2014

The importance of closing out matches in tennis; more mailbag /

Serena Williams' ability to close out matches helped her become one of the best in women's tennis. — Serena Williams' ability to close out matches helped her become one of the best in women's tennis :: SAEED KHAN/Getty Images

• The USTA announced that single-day tickets for the U.S. vs. Italy Fed Cup World Group first-round tie are now on sale.

Published Jan 17, 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.