ENLARGE Ashleigh Johnson of the U.S. makes a save during a women’s preliminary water polo match against China. With preliminaries set to begin Sunday in synchronized swimming—an event that requires clear water for referees and athletes—officials finally concluded that the water in the water polo pool needed to be changed, Nascimento said. After technicians added more chlorine, Andrada said, a number of water polo players complained about the water stinging their eyes. “Obviously, we would rather have the Plan A than the Plan B.”Corrections & Amplifications:The water polo pool is being drained and its water replaced on Saturday. An earlier version of this article incorrectly stated that the diving pool would also be drained.

Source: Wall Street Journal August 13, 2016 19:33 UTC