What to know

• Aryna Sabalenka cut short questions about her pre-tournament activities in an excruciating exchange with a reporter following her second-round win.S1S2
• Aryna Sabalenka cut short questions about her pre-tournament activities in an excruciating exchange with a reporter following her second-round win at the US Open. The two-time defending champion thrashed Russian qualifier Polina Iatcenko 6-1, 6-1 in 53 minutes...S3