text: Roddick, Venus, Navratilova Win Openers (AP) AP - Bothered more by the wind and her wrist wrap than her opponent, defending gold medalist Venus Williams overpowered Melinda Czink of Hungary 6-1, 6-2 in the opening match of the Athens Games' tennis tournament. Andy Roddick made his Olympic debut with a 6-3, 7-6 (4) victory over Flavio Saretta of Brazil, swatting 12 aces and 16 service winners.