Three teenagers remain in the draw, and by the end of play tomorrow, there will two teenagers in the quarterfinals. Either a teenage American or a teenage Pole will join the teenage Czech in their first major quarterfinals.
 Anastasija Sevastova (LAT) vs.  Marketa Vondrousova (CZE): the quarterfinals of a major were at stake and experience should have been on the side of the number twelve seed; however, it was the teenage Czech player who played with the composure of a veteran. She never allowed Sevastova to play her game and broke early in each set to get the 6-2, 6-0 victory.
Three-time major champion and longtime top ten player,  Stan Wawrinka (SUI), proved to the young Greek why he was a top ten player. Wawrinka had a two-sets-to-one lead before  Stefanos Tsitsipas (GRE) fought back to win the fourth set and force a fifth set. There were plenty of break point opportunities (41) in the match, not to mention the fifth set and Tsitsipas was only able to capitalize in the entire set on eighteen percent of his opportunities. Wawrinka won 7-6(6), 5-7, 6-4, 3-6, 8-6; It was a battle though (5 hours) and one wonders how Wawrinka will feel in the next round?
 Johanna Konta (GBR) got some revenge today when she defeated  Donna Vekic (CRO) 6-2, 6-4.
AMERICANS STILL IN THE DRAW
 Sloane Stephens had a battle against two-time major champion,  Garbine Muguruza (ESP). The Spaniard had an early break lead in the first set, but the American fought back to even the match. They traded another break later in the set before Stephens finally broke to win the set. It was a high-quality match with both players trying to out-hit their opponent; however, despite struggling to close things out, she needed five match points, Stephens prevailed 6-4, 6-3 to advance to the quarterfinals.
Three Americans will play tomorrow for a chance to join Stephens in the quarterfinals:  Madison Keys; Sofia Kenin and seventeen-year-old, Amanda Anisimova.
SPECIAL MENTION:  Rafael Nadal (ESP) and  Roger Federer (SUI) remain on a collision course to play each other in the semifinals if each can get by their respective quarterfinal opponent.
SOURCE OF IMAGES: Zimbio.com (main image: Getty Images Europe – Marketa Vondrousova)