Emma Raducanu finished up practice at the U.S. Open on Friday by hitting with a young girl she asked fans on social media to help her find after they couldn't connect a day earlier. Raducanu is back at the tournament she surprisingly won three years ago, and she shrugs off questions about whether she’s played enough matches to be ready for it. “Even when I won the U.S. Open, I only played a few tournaments that year,” Raducanu said.