The 28-year-old also admitted she was left humiliated after the crushing loss but likely had nothing left in the tank after her monumental win over the top seed in the third round.
Speaking in her post-match press conference, she said: “Yeah, that was pretty embarrassing. It was a tough day at the office.
“Unfortunately I had to fail in front of thousands and thousands of people. So I have to live with that one.
“It’s a little, a lot, obviously disappointing that I couldn’t muster up a little bit more today. But, you know, I told you guys the other night it took everything I had to beat Barty. I guess that was a little apparent today.”