As tennis stars strive to shield from the sun at the Australia Open in Melbourne, we shield their faces to see if you can guess who's feeling the heat Down Under.

Loading Slideshow...
  • Guess who?

  • It's Victoria Azarenka

  • Guess who?

  • It's Roger Federer

  • Guess who?

  • It's Serena Williams

  • Guess who?

  • It's Maria Sharapova

  • Guess who?

  • It's Juan Martin del Potro

  • Guess who?

  • It's Andy Murray

  • Guess who?

  • It's Ana Ivanovic

  • Guess who?

  • It's Gael Monfils

  • Guess who?

  • It's Agnieszka Radwanska

  • Guess who?

  • It's Tomas Berdych

  • Guess who?

  • It's Laura Robson

  • Guess who?

  • It's Fernando Verdasco

  • Guess who?

  • It's Jelena Jankovic

  • Guess who?

  • It's Heather Watson

  • Guess who?

  • It's Janko Tipsarevic