"On an emotional level, it made me think of the 2012 and 2016 Olympics when a whole stadium is with you and cheering you on, it's very heartwarming," said French judo star Teddy Riner, who competed in Japan.
Osaka had said then she would boycott news conferences to raise awareness of players' mental well-being, but she did speak to reporters after the defeat by Vondrousova.
Bolt revealed the news on Instagram with a Father's Day family photo, showing a lightning bolt emoji next to each of his children's names in the caption, without stating when the twins were born.