He won the tennis U.S. Open in 1994 and 1999, completed a career Grand Slam by winning at least one championship at each of that sport’s majors and was inducted into the International Tennis Hall of Fame in 2011. It was announced earlier this month that Agassi will be a studio analyst for TNT Sports during the semifinals and finals at the French Open this year. Pickleball is a mix of tennis and ping pong that uses paddles and a wiffleball. It quickly rose from nearly nothing to more than 13 million players in the United States in just a few years. Check out our sports section for the latest news and analysis.