How would you distinguish between newer composite materials for tennis racquet frames that have changed the game by adding more power and “double stringing” that would have changed the game by adding more control? Is there a real difference? According to tennis champion Martina Navratilova, the newer frames have significantly changed the game because the much-improved groundstrokes make it very difficult for serve-and-volley players to succeed (Tennis, 2006). If not, can you speculate as to why technology changes in frames have not been challenged but double-strung racquets were banned?