Tennis ace Agnieszka Radwanska to return to the game as a super coach . The 58-time grand slam winner will coach Martina Navratilova in one month . The world No . 177 hopes Navratilova will help her win a 50th grand slam title . The 58-year-old will work with world No . 6 `` I 'm really excited , '' says Navratilova about her new role .
Tennis ace Agnieszka Radwanska to return to the game as a super coach . The 58-time grand slam winner will coach Martina Navratilova in one month . The world No . 177 hopes Navratilova will help her win a 50th grand slam title . `` I 'm really excited , '' says Navratilova about her new role .