"I personally feel like it's an obligation to qualify," the 58-year-old Argentinian told reporters. "I play to win and I don't take losing particularly well."
Williams will take on Bulgaria's Tsvetana Pironkova, who overcame Alize Cornet of France 6-4, 6-7 (5), 6-3 in another round of 16 match.
Messi's father Jorge flew into Barcelona on Wednesday to meet with Barcelona president Josep Maria Bartomeu, but that meeting failed to see the two parties move closer to an agreement, raising the possibility of a court case - something Messi insisted he wanted to avoid.
"Right now I'm really focused on the US Open, and nothing else I can think about right now," said Williams, who has won six of her 23 Grand Slam singles titles at the US Open.
Due to the pandemic, this year's Expo was held both online and offline. At the Expo in Beijing, more than 500 Chinese and foreign brands from more than 20 countries and regions showcased their products and services.
"Many parts of the region continue to have very challenging public health situations, and that has been a key factor in this decision," read a statement on FIFA's official website on Tuesday.
"Serena is Serena," Sakkari said after advancing earlier on Saturday by beating 19-year-old American Amanda Anisimova 6-3, 6-1. "You have to come up with some great tennis. Otherwise there is no chance against her." Enditem
"The final climb wasn't too hard, it was difficult to make a gap there, and therefore attacking would have been a huge effort for a small gain. So we rode steady to save energy for the coming days," Yates said.
Klein called safeguarding the club's financial pattern more important than ever for the future of football.
Despite the easy win, the Russian star said his opponent has a bright future.
Bruno Nazario equalized shortly after with a dipping free-kick that rebounded in off the crossbar after a clumsy attempt to parry the ball clear by goalkeeper Cassio.