Caroline Wozniacki says the WTA "forced" her to play in her second-round Rogers Cup loss to Belinda Bencic, even though she is struggling with a calf injury.
Wozniacki, the world No. 5, wore heavy strapping on her left calf throughout her 7-5, 7-5 defeat to Bencic on Wednesday in Toronto.
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The former world No. 1 from Denmark indicated afterward that she had not been able to practice because of the injury, but could not pull out due to WTA rules.
"The rules are if you're a top-10 player, that this was my commitment tournament, you're forced to play," Wozniacki said.
"If you don't, you get huge money fines. You get zero points to your ranking ... which is crazy."
Wozniacki continued, "The WTA is all about: 'We want the players healthy, we want them to play at their best level at every tournament and we want to make it tough for them.'
"That's good, but the fact that they're pushing you to play whenever, if you are not feeling 100 percent, is not OK."
Wozniacki was also knocked out in the second round in Stanford last week and will hope her calf problem clears up before the U.S. Open, which begins on August 31.