British teenager Emma Raducanu says her stunning run to the US Open quarter-finals is "surreal", but feels confident and "in control" as she chases a place in the semi-finals.
Raducanu faces Swiss 11th seed Belinda Bencic, who won the Olympic title last month, in the last eight on Wednesday.
"I didn't expect to be here at all," said the 18-year-old.
"I feel very confident in my game and in each match I am growing and learning new things."
The pair will meet on Arthur Ashe Stadium at 17:00 BST, with live text and BBC Radio 5 Live Sports Extra commentary on the BBC Sport website and app.