The Russian will face Rafael Nadal on Sunday for the title
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The American won 6-3, 6-1 in 70 minutes
The Russian won 7-6, 6-3, 3-6, 6-1 to reach first grand slam semifinal
The Brit will move on to the US Open quarterfinals
The Frenchman advances after 6-7, 7-6, 6-4, 6-7, 6-3 win
Two Americans battled it out for a chance at the round-of-16