NEW YORK — The road to Thursday's women's semi-finals at the U.S. Open tennis championships at Flushing Meadows (prefix denotes seeding):1-Serena Williams (U.S) vs Roberta Vinci (Italy)
Williams
QF beat 23-Venus Williams (U.S.) 6-2 1-6 6-3
R16 beat 19-Madison Keys (U.S.) 6-3 6-3R3 beat Bethanie Mattek-Sands (U.S.) 3-6 7-5 6-0R2 beat Kiki Bertens (Netherlands) 7-6(5) 6-3R1 beat Vitalia Diatchenko (Russia) 6-0 2-0 ret.VinciQF beat Kristina Mladenovic (France) 6-3 5-7 6-4R16 beat 25-Genie Bouchard (Canada) walkoverR3 beat Mariana Duque-Marino (Colombia) 6-1 5-7 6-2R2 beat Denisa Allertova (Czech Republic) 2-6 6-3 6-1R1 beat Vania King (U.