Flavia Pennetta won the U.S. Open women's final on Saturday, then announced her retirement while still on the court.
Pennetta defeated Roberta Vinci 7–6 (7–4), 6–2 in Saturday's final. Vinci defeated tournament favorite Serena Williams in the semifinal.
Pennetta said during her post-match interview she was ending her career at the end of the year.
Williams responded to Pennetta's announcement on Twitter:
The 33-year-old Pennetta won her first Grand Slam title with the U.S. Open win. Her previous best finish was an appearance at the Australian Open quarterfinals last year.
Pennetta said the U.S. Open will be her last match in New York, and she'll consider playing in the Olympics.
– Rohan Nadkarni