The Credit One Bank Invitational from Charleston, South Carolina.

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Alex Faust: The Credit One Bank Invitational reaches the business end in Charleston. Team Kindness, Captain Madison Keys kicked off Saturday's action with a vital win over the reigning Aussie Open champ, Sonya Kenin. The American closing it out in the match tiebreak to close the gap in the team competition to just four points.

Madison Keys: When you play someone like Sonya, you know that she's going to upper level, especially when it matters. So she definitely did that, you know, at the end of the second set and a few those points for me. But I thought I had a pretty clean tiebreaker for the third and happy to get three points up on the board.

Alex Faust: But Jennifer Brady hit right back for Team Peace, taking out former U.S. Open champion Sloane Stephens in straight sets. The twenty-year old's victory extended the lead to seven points and maintained her unbeaten run this week in South Carolina.

Jennfier Brady: I thought it was a pretty good match overall. I think the beginning of the second set, maybe I backed off a little bit. Sloane was definitely being a little bit more aggressive. But yeah, happy I got the win.

Alex Faust: One singles and four doubles matches all set to be played Sunday. For Tennis Channel, I'm Alex Faust.