Roberta Vinci upsets Serena Williams in U.S. Open semifinals

US Open 2015 semifinals live blog: Live analysis and updates on the Serena Williams vs Roberta Vinci semifinals match from New York.

Jamie Lisanti | Sep 11, 2015

Roberta Vinci upsets Serena Williams in U.S. Open semifinals /

NEW YORK – Roberta Vinci upset No. 1 Serena Williams in three sets in the U.S. Open women’s semifinals on Friday, ending Williams's hopes of completing the calendar Grand Slam. Vinci, who is unseeded, won Friday’s match 2–6, 6–4, 6–4 over Williams, who has won the last three U.S. Opens. Entering Friday, Williams had never dropped a set against Vinci.

Point-by-point analysis and updates:

Published Sep 11, 2015

JAMIE LISANTI

Jamie Lisanti is an assistant managing editor at Sports Illustrated. A former college soccer player, she covers a variety of topics, including tennis, Olympics, fitness and nutrition, and more.