Serena Williams' quest for the calendar grand slam faces another interesting twist as she faces a player in a semifinal match where her record shows that they never would even reach a third set! It's a player that she should beat very easily!
It's her tenth trip to a US Open semifinal and her 29th overall in all the slams.
This was her trip to the semi's -
1R: Vitalia Diatchenko (RUS) (#86)
2R: Kiki Bertens (NED) (#110)
3R: Bethanie Mattek-Sands (USA) (#101)
4R: Madison Keys (USA) (#19)
QF: Venus Williams (USA) (#23)
SF: Roberta Vinci (ITA) (#43)