John Isner

US now waits after clinching 1st Davis Cup semi since 2012

The United States is off to a perfect start in Davis Cup play this year, and the Americans now have to wait and see if they can continue this momentum when they play in the semifinals for the first time since 2012.

Ryan Harrison had the honors Sunday wrapping up a 4-0 victory over Belgium in essentially an exhibition match with the U.S. already clinching a semifinal berth against Croatia on Sept. 14-16. Harrison, ranked 54th in the world in singles, beat Ruben Bemelmans 6-3, 6-4 in 65 minutes after the U.S. won the first three matches to improve to 5-0 all-time in Davis Cup play against Belgium.

"It's one of the great challenges in Davis Cup in this current format is...

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