Tennis stars pull emoji faces

Top tennis stars have been pulling some weird and wacky faces as they take on the emoji challenge.

The Women's Tennis Association challenged tennis stars like Maria Sharapova to copy some emoji faces!

Eugenie Bouchard gives a knowing wink as she breezes through the challenge.

Pucker up! Serena Williams blows a kiss to the camera.

Chill out! Caroline Wozniacki pulls her furious face.

Simona Halep shows her wide-eyed surprise.

Garbine Muguruza shows a toothy grin... or is she cringing?

Ana Ivanovic gives a pretty accurate emoji wink.

Stumped! This heart-eyed emoji ultimately defeated Serena Williams