With a collective 80 years of experience, we’ve spent our careers earning the trust and respect of the game’s top professional players. Because we know the game – its history, its milestones and its essence – we have always been poised to create and cultivate long-lasting and highly successful client relationships. We represent some of the best young talent in the game, including five-time Grand Slam Champion Justine Henin, Mardy Fish Olympic Silver Medalist, Anna Chakvetadze, Victoria Azarenka, Caroline Wozniacki, American standouts Sam Querrey and John Isner and the ATP World Tour No. 1 ranked doubles team of Bob and Mike Bryan. Overall, Lagardère Unlimited Tennis is unmatched in player talent representation, management and marketing.
Sam Duvall
Vice President, Lagardère Unlimited Tennis
sduvall@lagardere-unlimited.com
Sam Duvall currently serves as Vice President for Lagardère Unlimited Tennis. He is responsible for recruiting, contract negotiations, and marketing for the Lagardère Unlimited Tennis division.
Duvall began his career in 2005 as an intern at SFX and has quickly risen to his current position. He works in the Washington D.C. office with mentor and Lagardère Unlimited Group President Donald Dell. Duvall has signed and personally manages 12 ATP and WTA players, including rising stars John Isner , Denis Kudla , Melanie Oudin and Eugenie Bouchard . Duvall also works closely with Lagardère Unlimited Tennis President John Tobias on the accounts of Caroline Wozniacki, Victoria Azarenka and Sam Querrey.
Duvall holds a Bachelor’s degree in Psychology from Bates College and a minor in Economics. Duvall was a 2-year captain on the nationally-ranked men’s tennis team.
Jamey Sunshine
Vice President, Marketing
jsunshine@lagardere-unlimited.com
Jamey Sunshine serves as Vice President, Marketing within the Tennis Division of Lagardère Unlimited where he manages the marketing strategies and partner relationships for Lagardère Unlimited Tennis clients.
Sunshine received a Bachelor’s Degree in Business Economics from the State University of New York College at Oneonta where he was also a Captain of the men’s tennis team. Sunshine came to Lagardère Unlimited with 10 years of experience in the marketing and sports industries, beginning his career in professional tennis within the Communications department of the ATP World Tour, where he was an editor of the ATP’s web site and a liaison with tournaments and media in the US. His initial start in the tennis industry was followed by eight years in experiential marketing and brand management. Sunshine worked directly with multiple Fortune 500 brands where he was responsible for developing brand strategy and overseeing the execution of events, sponsorship activation, and sports marketing projects.
Sunshine is based in the Washington, DC office and works with multiple Lagardère Unlimited Tennis clients, including Caroline Wozniacki, Victoria Azarenka, Melanie Oudin, Sam Querrey, John Isner, Bryan Brothers, and Mardy Fish.












