How to watch Karen Khachanov vs Alexander Blockx: US Open quarterfinal live stream, TV channel

Karen Khachanov and Alexander Blockx are set to face off on Wednesday in US Open quarterfinals action at Arthur Ashe Stadium, with a spot in the semifinals on the line.

September 7, 2026; New York, United States; Russia's Karen Khachanov in action during his round of 16 match against Learner Tien of the U.S. Mandatory Credit: Geoff Burke-Imagn Images

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How to Watch Khachanov vs Blockx

When: Wednesday, September 9, 2026

Time: 5:00 PM ET (Updated)

TV Channel: ESPN

Live Stream: Fubo (try for free)

This matchup between Karen Khachanov and No. 28 Alexander Blockx is quite an unexpected quarterfinal matchup. Both men have worked incredibly hard to get to this point with plenty of upsets along the way.

Blockx is making his first-ever singles appearance at the USTA Billie Jean King National Tennis Center, and one of his biggest upsets was against No. 5 seed Flavio Cobolli. In that third-round matchup, he lost the first set before going on to win the next three. In his last match, Blockx beat No. 24 Francisco Cerundolo in four sets to make it to the quarterfinals.

Khachanov beat American Learner Tien in his last match in a five-set nail-biter. Khachanov was able to keep his cool and won (7-5, 4-6, 6-7, 6-1, 6-4). The 30-year-old's biggest upset came by defeating No. 3 seed Felix Auger-Aliassime in four sets. He's now reached the seventh Grand Slam quarterfinal of his career. The furthest he's gone at the US Open is a semifinal appearance in 2022.

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This will be the first time that Blockx and Khachanov have faced each other.

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