"When you don't play big points well, the match can get away from you".
If you do not now have a subscription with Amazon, you can get a free 30-day trial of Amazon Prime by registering an account. She spent two years studying leisure management but returned to tennis once she felt fully healthy.
Stephens struggled with her movement, was repeatedly being caught out by Sevastova's drop shot and after a number of wayward errors was bent double on the court.
But the change of ends that followed forced Stephens back into the sunshine and she looked unsettled once more, berating herself as Sevastova moved 4-1 up with a win to love.
Asked what he thinks he needs to improve in his game moving forward, the three-time US Open champion said: "I think a little bit the speed of my cross-court". "If you were to play the same people in a row again and beat all of them again, that would be defending your title".
3-6 to Latvian 19th seed Anastasija Sevastova in sweltering conditions on Tuesday.
Russian nationals named as suspects in Salisbury Novichok poisoning
They stayed in a hotel in London - where traces of Novichok were also found - and made two trips to Salisbury. Bailey was sickened after attending to the Skripals where they were found in Salisbury.
"It was an wonderful journey this three, four years", Sevastova told reporters after the match, a repeat of last month's Rogers Cup semi which Stephens won in straight sets.
But even though her first Grand Slam title defence did not work out as she envisioned, the experience will be invaluable to Stephens, who hopes to put in a strong finish to the season. She received a wild card into last year's U.S. Open and became the youngest player ever to make the girls' final.
"So the fact that I made it to the quarter-finals and played some really good matches and I just competed as hard as I could, I mean, a lot to be proud of".
"I would never have forgiven myself if I had lost that match", said a tearful Osaka. "I need to play my best match of the tournament if I want to keep having chances to stay in the tournament". "Maybe the top 100".
"I think you need some time to look at the journey - it was an awesome journey these three to four years", she added. It's back to the drawing board for the number 3 player and onto the next tournament be it in Chicago, Quebec City, onto the Asian Swing, the WTA Finals or others. "And when you're winning a tournament, you think that's normal".
"But now, obviously when you win more you have higher goals". The two will square off in the semi-finals on Thursday, with the 23-time major champion Williams starting as the firm favourite. A year ago he lost a very tough match against Del Potro here.