U.S. Open tennis: Serena Williams, Daniil Medvedev reach semifinals
Wednesday, September 9, 2020 - 21:00
in Mathematics & Economics
No. 3 seed Serena Williams dropped the first set but rallied for a 4-6, 6-3, 6-2 win over Tsvetana Pironkova on Wednesday in the U.S. Open quarterfinals at Arthur Ashe Stadium in Queens, N.Y.