Portrait of Swedish tennis great Bjorn Borg (left) and American tennis great Chris Evert holding a wooden tennis racket early in their tennis careers. (Photo by Gilbert Iundt/Corbis/VCG via Getty Images)
Portrait of Swedish tennis great Bjorn Borg (left) and American tennis great Chris Evert holding a wooden tennis racket early in their tennis careers. (Photo by Gilbert Iundt/Corbis/VCG via Getty Images)