Name the doubles partner who assisted an American professional tennis player known primarily as a doubles specialist and current tennis broadcaster for ESPN, defeat Larisa Savchenko and Natasha Zvereva in the 1989 Virginia Slims Championships?
1989 Virginia Slims Championships – Doubles: Martina Navratilova and Pam Shriver were the defending champions and successfully defended their title, defeating Larisa Savchenko and Natasha Zvereva 6–3, 6–2 in the final. Pam Shriver: Pamela Howard Shriver (born July 4, 1962) is an American former professional tennis player known primarily as a doubles specialist with success also as a singles player. Pam Shriver:  She currently is a tennis broadcaster for ESPN.
Navratilova