MORE SEEDS FELL

[7] Dominic Thiem (AUT) lost to [149] Alexei Popyrin (AUS). The nineteen year old Australian was up two sets when Thiem retired. Popyrin won 7-5, 6-4, 2-0 (RET).

[23] Carla Suarez Navarro (ESP) lost to [59] Dayana Yastremska (UKR). The eighteen year old Ukrainian upset the veteran in three sets: 6-3, 3-6, 6-1.

[24] Hyeon Chung (KOR) lost to [53] Pierre-Hugues Herbert (FRA): 2-6, 6-1, 2-6, 4-6. The Frenchman is into the third round of the Australian Open for the second time.

[29] Gilles Simon (FRA) lost in five sets to [159] Alex Bolt (AUS): 6-2, 4-6, 6-4, 6-7(8), 4-6.

[32] Philipp Kohlschreiber (GER) lost to [44] Joao Sousa (POR) in five sets: 5-7, 6-4. 6-7(4), 7-5, 4-6.

AMERICANS WHO WON ON DAY 4

[16] Serena Williams defeated [79] Eugenie Bouchard (CAN): 6-2, 6-2.

[17] Madison Keys defeated [90] Anastasia Potapova (RUS): 6-3, 6-4

[37] Venus Williams defeated [47] Alize Cornet (FRA): 6-3, 4-6, 6-0.

Brady/Riske defeated Sharma/Wallace: 4-6, 6-3, 6-2.

Johnson/Kudla defeated Ebden/Lindstedt: 7-5, 6-3

Sock/Withrow defeated [2] Cabal/Farah (COL): 6-7(6), 6-3, 6-4

AMERICANS WHO WERE CLOSE TO CREATING MAJOR UPSETS

[56] Sofia Kenin had a break in the third set and was serving 4-2 to take a 5-2 on [1] Simona Halep (ROU); unfortunately, the nerves kicked in and she did not win another game. Halep won 6-3, 6-7(5), 6-4.

[89] Madison Brengle started off real hot but could not keep the momentum going against [7] Karolina Pliskova (CZE). The Czech won 4-6, 6-1, 6-0.

AMERICAN MEN REMAINING IN THE DRAW AT THE END OF THE DAY

[81] Ryan Harrison (USA) lost to [15] Daniil Medvedev (RUS): 3-6, 3-6, 3-6. With his loss, there are now only two American men remaining in the singles draw: Taylor Fritz and Frances Tiafoe.

SOURCE OF IMAGES: serveandrally originals (main: Dayana Yastremska; inserts: Eugenie Bouchard and Frances Tiafoe)