Andrey Rublev vs. Frances Tiafoe Prediction and Promo for U.S. Open Quarterfinal (Win $150 Guaranteed)

Frances Tiafoe stunned the tennis world on Monday with a thrilling upset victory over 22-time Grand Slam champion Rafael Nadal, becoming the youngest American to make the U.S. Open quarterfinals since Andy Roddick in 2006.

Awaiting Tiafoe is Russian Andrey Rublev, who defeated Cameron Norrie in straight sets to advance.

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Even though it doesn't matter if we win or lose our $5 wager, here's how I'm betting Rublev vs Tiafoe in the quarterfinals:

Andrey Rublev vs. Frances Tiafoe Prediction and Pick

Andrey Rublev (-110) vs Frances Tiafoe

After winning the match of his life, it sure feels like Frances Tiafoe is a player of destiny. Nadal was previously undefeated in majors this year, and Tiafoe deserves the praise and glory coming his way.

That being said, the emotional rollercoaster had to be exhausting for Tiafoe. Rublev won his Round of 16 match with ease in straight sets, needing just over two hours to advance. He'll certainly have a conditioning edge after expensing relatively little effort, and Rublev dominated Tiafoe at the Indian Wells earlier this year.

Tiafoe is a fantastic story, but Rublev is the superior hardcourt player. He's won 19 of his 25 matches on the surface this year, a stark improvement over Tiafoe's 14-9 record.

I'll back Rublev to finally breakthrough the quarterfinals of a Grand Slam. I'd imagine most of the betting public will favor Tiafoe after his incredible win, but this is a perfect time to fade the American in a let-down spot.

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Follow all of Joe Summers' betting picks here.