It's a jam packed episode of Tennis Channel Inside-In this week, as Alex Gruskin from "Cracked Racquets" calls the show live from the Citi Open grounds in Washington D.C.. Gruskin recaps an electric night match between Rafael Nadal & Jack Sock, assesses Nadal's chances going forward, and takes a deep dive into several young and promising American men's tennis players. And then WTA pro Marta Kostyuk joins the show to discuss her budding pro tennis career. The Ukrainian teenager breaks down the highs and lows of her tennis journey, what she hopes to accomplish, and lists a few of her favorite hobbies. Hosted by Mitch Michals.