World Number 43 Roberta Vinci defeated Top seed Serena Williams in three sets to reach her first Grand Slam Final.
Serena Williams's hopes of securing a calendar Grand Slam were ended in stunning fashion by Italy's Roberta Vinci in the US Open semi-finals.
Vinci, caused a huge upset with a 2-6 6-4 6-4 win.
Vinci, 32, will play Flavia Pennetta in an all-Italian final at Flushing Meadows on Saturday.
Pennetta, the 26th seed, outplayed Romanian second seed Simona Halep in the first semi-final to win 6-1 6-3.
photo Cheltenham jockey club
photo Cheltenham Racecourse
Racing Post Arkle Challenge Trophy Novices' Chase (Grade 1) (Class 1)
T: W P MullinsJ: R Walsh
T: N J HendersonJ: Nico de Boinville
T: H de BromheadJ: D N Russell
Sky Bet Supreme Novices' Hurdle (Grade 1) (Class 1)
T: T R GeorgeJ: N D Fehily
T: Miss Amy MurphyJ: Jack Quinlan
T: G ElliottJ: J W Kennedy
Slovakian alpine skier narrowly beats Millie Knight to capture gold photo Getty Images