"Pretty sure that's the closest I've come to throwing up in the middle of a race. I'm just so glad I got my hand on the wall first."

Katie Ledecky of the United States, on the discomfort she experienced while winning the women's 200m freestyle to claim her second individual gold and stay on track for a rare treble

"My coach told me before the quarterfinals to focus on my own game, rather than to think too much of irrelevant things. Also, we've been well prepared for the match and performed better."

Ai Fukuhara, Japanese table tennis player, after the women's singles sixth seed upset Singapore's No 2 seed Feng Tianwei 4-0 to make the semifinals

"I was so nervous, so afraid. What if I don't win a medal? Coming to Rio, I wanted to take it like any other meet. I'm really able to just be myself."

Katinka Hosszu, Hungarian swimmer known as the 'Iron Lady', after winning her third gold medal, in the 200m individual medley

"To play for a medal is actually something I never dreamed of, because growing up we always just wanted to go for the Grand Slams."

Serena Williams, US tennis player and the wealthiest female athlete in the world, on her Olympics expectations

"Neymar will become the best player in the world, we need to respect him. He is young. I know that at times he behaves in away that we may not like, but at his age, wouldn't we do the same things?"

Rogerio Micale, Brazil coach, defending his struggling 24-year-old striker, who has been criticized for poor performances

"The key was the force of the team. We are proud and also humble because we have great teams ahead, especially Poland. The match puts us close to the quarterfinals."

Julio Velasco, Argentina men's volleyball coach, after his team went unbeaten in qualifying