With the release of the Emma Stone & Steve Carrell movie ‘Battle of the Sexes’, we look back at the actual event with Chronicle reporter Dale Robertson, who covered the historic Astrodome tennis match between Billy Jean King & Bobby Riggs. Robertson interviewed King the day after the match & developed a professional relationship with her over the years. He lets us in on a few things not in the movie & gives his take on Riggs possibly throwing the match. Who’s the best men’s player of all-time? Robertson has thoughts on Federer, Nadal & Sampras.