The top pros can sometimes seem superhuman to watch, but this challenge brought the 2017 French Open champion's game back down to earth.

Jelena Ostapenko tried hitting some serves blindfolded, and the results were disastrous, to say the least.

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Ostapenko fails at blindfold tennis

The world No. 5 couldn't make contact with the ball at first, but eventually improved—though not enough to actually make a serve in the box.

"I don't know how to play tennis," she said.

Following her run to the final in Miami, Ostapenko went home to Riga, Latvia, instead of defending her runner-up result in Charleston.

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Ostapenko fails
at blindfold tennis

Ostapenko fails at blindfold tennis

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