Wimbledon champion Garbine Muguruza needed only 62 minutes to defeat Slovakian 31st seed Magdalena Rybarikova 6-1, 6-1 and continue her best US Open run as well as take command of the fight for women's world number one.
"It doesn't matter if I played for a year, not even if I'm ranked 100 or number whatever, they're coming for me. Yeah, I'm not sure where she is".
The American, an up and coming player that stated her admiration for the Russian before the match, gave an fantastic performance but she wasn't able to outlast Sharapova who booked her spot in the fourth round of the US Open with a 7-5, 6-2 victory.
It was only the 19th match of the year for Kvitova, who missed the first half of the season after she was cut on her left hand - the one she holds her racket with - during an attack by a knife-wielding intruder at her home in the Czech Republic in December.
Five-time Grand Slam champion Sharapova, who tested positive for the blood booster meldonium at the 2016 Australian Open, reached the round of 16 for the 14th time in 15 Slams since the 2011 US Open.
"With regards to scheduling, as you know, I don't make the schedule".
However, the young American was unwilling to grant Sharapova another break, giving the NY crowd hints at a possible comeback as she held to win her first game of the set.More news: Body of missing Temple University student found
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He will face Ukraine's Alexandr Dolgopolov, against whom he is 6-2, for a place in the quarter-finals. While the 30-year-old Russian is an imposing 6-foot-2, Sevastova is a compact 5-foot-7.
Since a rollercoaster straight set win over Jelena Jankovic in her opener, Kvitova has looked just as dominant, losing just seven games in her last two matches against Alize Cornet and Caroline Garcia.
After a couple of exchanges of breaks in the second, Williams stole her opponent's serve again to close it out on the first match point when Sakkari's forehand sailed long.
"She played unbelievable throughout the first and second set and I just kept fighting, running for every ball", Sevastova said.
American Sloane Stephens, 24, is into the US Open's fourth round, something she last did in 2013.
Sharapova noted that she was training her attention on returning to a lifestyle where wild card gifts are not necessary to play before the biggest crowds.
"But ultimately I can take a lot from this week". She's the best of all time. Sharapova entered the tournament having not played since late July because of injuries. Good run, regardless " I think there are a lot of positives.
Serena isn't participating in the last grand slam of the year due to the birth of her first child.
Displacing the power player from the baseline, Sevastova mixed in the drop shot and sharp angles dragging Sharapova into awkward positions on court.