Top-ranked tennis player Novak Djokovic says canceling the Olympics "is unthinkable" and, "for the moment," he is still planning to compete at the Rio de Janiero Games, despite worries about the Zika virus.

Speaking at the French Open on Saturday, Djokovic added that people should not only be concerned about those who are going to Rio for the Olympics, but also the Brazilians themselves — "not talking about them too much."

Earlier Saturday, the World Health Organization rejected a call from 150 health experts to consider postponing or moving the Aug. 5-21 Olympics.

Says Djokovic: "Honestly, I don't know what to think anymore."

The No. 1 women's tennis player, Serena Williams, says Zika has "been on my mind" and she will have to head to Rio "super-protected, maybe."