Madison Keys’ U.S. Open run is over after what appeared to be a neck injury.
Keys, the tournament’s No. 7 seed, was down a set and trailing 3-2 in the second against France’s Alize Cornet when she retired from the match Saturday night at Arthur Ashe Stadium.
The 27-year-old Keys, the 2017 Open finalist, was tended to by a trainer during the changeover after dropping the first set in a 7-4 tiebreaker. She continued to have trouble serving during the second set.
Cornet will face Tsvetana Pironkova of Bulgaria in the fourth round, her deepest advancement in 14 Open appearances.
Serena Williams on the retirement last week of the long-standing doubles team of twin brothers Bob and Mike Bryan, 16-time Grand Slam winners: “I heard about it just as the tournament was starting. Honestly, I wasn’t ready for it. I knew it was going to come at some point, but, you know, I have been on tour with them our whole lives. It’s always sad to see another one go. It’s, like, OK, it moves me even closer to the line, and I’m trying to avoid the line.”
No. 20 Karolina Muchova, who knocked out Venus Williams in the first round, advanced to the fourth round for the first time in her career by ousting Sorana Cirstea of Romania in a third-set tiebreaker (9-7).
American 18-year-old Caty McNally, the youngest remaining player in either draw, lost in straight sets to No. 16 Elise Mertens of Belgium.