The No. 1 female tennis star Serena Williams is upset in the U.S. Open’s Women’s semifinals on Friday.
Roberta Vinci beat Williams in three sets, 2-6, 6-4, 6-4, ending Williams’ hope of winning the calendar Grand Slam.
— CNN (@CNN) September 11, 2015
Vinci was unseeded and ranks No. 43 in the world.
Vinci will face fellow Italian Flavia Pennetta in the final on Saturday.