NEW ORLEANS — There was a time, not that long ago really, when Joscelyn Roberson would combat the nerves that inevitably popped up before a major gymnastics meet by reminding herself of one very simple fact.“I could be like, ‘Oh no one’s watching me,’” the 19-year-old said with a laugh. “Like they’re watching Simone (Biles). They’re watching Jordan (Chiles). They’re watching Suni (Lee) and Jade (Carey). Like, they are not watching me.”Well, they are now.Biles, Lee, Carey and Carey are all on sabbatical from elite gymnastics, perhaps for good. And when Roberson salutes the judges during the first night of the U.S. Gymnastics Championships on Friday, the world championship gold medalist and Olympic alternate will be one of the few athletes on the floor with experience on the sport’s biggest stage.“Maybe they are kind of watching me (now), so it adds a different level of nerves, but I love it,” Roberson said.Good thing, because she’ll probably have to get used to it. Not just for Roberson, but the athletes who will find the spotlight pointing their way now that the icons who commanded it so completely have stepped aside, at least for now.A year after sending the oldest team in modern Olympic history to Paris, the average age of the competitors who will spend the weekend at Smoothie King Center taking their first tentative steps toward the 2028 Los Angeles Games is under 18.Hezley Rivera helped the Americans capture gold last summer. Now, the 17-year-old finds herself thrust into the role as one of the standardbearers for one of the marquee programs of the U.S. Olympic movement, and the external pressure that comes along with it.“I definitely know that people have certain expectations, but I don’t really care what people have, like, expectations-wise for me,” she said. “I know what I want and my goals, so it’s kind of just focusing on what I’m doing in the gym and what I am doing on the competition floor.”Rivera’s elite 2025 debut was bumpy. She tied for 12th at the U.S. Classic last month, well behind WOGA club teammate Claire Pease, who showed uncommon poise in her first major competition at the senior l …