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Story summary
- Aryna Sabalenka, world No. 1, is aiming for a third consecutive U.S. Open title.
- She entered the tournament after losing match points in Madrid and surrendering a French Open quarterfinal lead.
- Coach Anton Dubrov says she converts stadium noise and traffic into motivation.
- After matches she does a 10-minute high-resistance bike, stretches, drinks a protein shake, eats steak, then sleeps.
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