The semifinals are set at the Volvo Car Open. Thursday's play saw two Grand Slam champions make their exit and two unseeded players reach the business end of the tournament.

These are the Top 5 photos from Friday in Charleston. (All photos: Volvo Car Open/Chris Smith)

1

Paula Badosa

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Top 5 Photos 4/9: 
Semifinals are set 
at Volvo Car Open

Top 5 Photos 4/9: Semifinals are set at Volvo Car Open

The Spaniard stunned world No. 1 Ashleigh Barty with a comprehensive 6-4, 6-3 victory. It’s Badosa’s first Top-10 win.

"I was quite nervous today but I think I served very well and I think that was the key for the match," Babosa said.

2

Danka Kovinić

Top 5 Photos 4/9: 
Semifinals are set 
at Volvo Car Open

Top 5 Photos 4/9: Semifinals are set at Volvo Car Open

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Facing the jaws of defeat, the unseeded Montenegrin rallied past Yulia Putintseva, 6-7 (2), 7-5, 6-1, to set up a clash with Ons Jabeur. It’s Kovinić’s first WTA 500 semifinal entry.

"To be honest I don't know the real secret why I'm playing well here,” said Kovinić, who took out two-time Grand Slam champion Petra Kvitova in the previous round.

3

Ons Jabeur

Top 5 Photos 4/9: 
Semifinals are set 
at Volvo Car Open

Top 5 Photos 4/9: Semifinals are set at Volvo Car Open

After two failed attempts, the Tunisian finally avenged her loses to Coco Gauff. Jabeur moved into her first semifinal of the season with a 6-3, 6-3 victory over the 17-year-old American.

"Maybe this year is a revenge year for me," Jabeur said. "Honestly, mentally-wise I'm much better. I'm getting there,” Jabeur said.

4

Veronika Kudermetova

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Top 5 Photos 4/9: 
Semifinals are set 
at Volvo Car Open

Top 5 Photos 4/9: Semifinals are set at Volvo Car Open

The Russian has not dropped a set en route to the final four, including her win against 2016 champion Sloane Stephens, 6-3, 6-4, in the elite eight.

"It's the first time I beat a player who's won a Grand Slam and I think that's really important for me,” Kudermetova said following her win over the American.

5

Coco Gauff

Top 5 Photos 4/9: 
Semifinals are set 
at Volvo Car Open

Top 5 Photos 4/9: Semifinals are set at Volvo Car Open

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The American teen took a medical timeout during the match’s first changeover. Against Jabeur, she hit 13 double faults and 31 unforced errors.