Lewis Jon Wertheim (born in Bloomington, Indiana) is a sports journalist and author. He has been a full-time staff member for Sports Illustrated since 1996, and is presently the Executive Editor . He has covered tennis, the NBA, sports business and mixed martial arts. He is also a contributing correspondent for 60 Minutes on CBS and an analyst for the Tennis Channel at the four Majors. Wertheim is the author of ten books including Strokes of Genius: Federer, Nadal, and the Greatest Match Ever Played, which gives a stroke by stroke analysis of the 2008 Men's Singles Wimbledon final between Roger Federer and Rafael Nadal, and is a co-author (along with Toby Moskowitz) of the New York Times bestseller Scorecasting: The Hidden Influences Behind How Sports Are Played and Games Are Won, a wide-ranging statistical analysis of common misconceptions in American sports.