The tennis Hall of Famer who won 22 Grand Slam doubles titles, 20 of them with Martina Navratilova, has found an equally impressive niche as a sideline reporter and commentator — smart, entertaining and unpredictable, though sometimes to her detriment.The tennis Hall of Famer who won 22 Grand Slam doubles titles, 20 of them with Martina Navratilova, has found an equally impressive niche as a sideline reporter and commentator — smart, entertaining and unpredictable, though sometimes to her detriment.