Zeenews Sports Bureau
Paris: In a match that lasted for more than three hours, Maria Sharapova defeated Klara Zakopalova 6-4, 6-7, 6-2.
The unheralded Czech troubled the Russian on several occasions but could not maintain the rhythm when required.
Both the players had a tough time fighting against the windy conditions on Court Philippe Chatrier.
Sharapova will become the world No 1, if she manages to reach the finals of French Open 2012. She will also complete her grand slam if she goes on to win the tournament.