What to know

• The duo suffered a 5-0 but fell 6-3, 6-7(6), 7-6(7) loss to Chan Hao-ching and Maya Joint in a three-set thriller.S1
• It had been four years since Serena and Venus Williams played together in the U.S. Open. The sisters crammed years’ worth of peak drama into Friday’s family reunion in Flushing. The Williams sisters lost their first-round doubles match, but in the end the scor...S2
• A familiar roar filled Arthur Ashe Stadium, one that had been a soundtrack to so many U.S. Opens before this. For the first time in four years on Friday night, Venus and Serena Williams took the court at Flushing Meadows together, renewing a prolific pairing t...S3