Through four rounds at the 2016 U.S. Open, No. 5-seed Simona Halep has shown stellar defense. She’s put 87% of her returns back in the court, returned over two-thirds of her opponents’ aggressive shots and stymied her opponents from the backcourt. She’s broken serve 25 times in 40 return games (63% of the time) which is equivalent to letting her opponent serve every game of the match and still winning 6-3, 6-4.
The ultimate test is coming up for Halep is her quarterfinal opponent, the best server in women’s tennis, World No. 1 Serena Williams. Serena has yet to lose serve in the tournament and has faced only one break point in reaching the quarterfinals.
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