Tennis stars' hilarious reaction to Kyrgios throwback

A hilarious photo of a young Nick Kyrgios has proven too much to handle for a number of the biggest names in tennis.

The likes of Andy Murray, Serena Williams and even Kyrgios himself were shown the photo and asked if they knew who it was.

Of course Nick knew, but the majority were rather stumped, with young Kyrgios a little bit chubbier than he is now.

Image: Channel 7

"He was a bit bigger than he is now," said men's World No.1 Murray.

Women's No.1 Williams couldn't help but crack up laughing before guessing Jo-Wilfried Tsonga.

He looks markedly different these days. Image: Getty

Agniezska Radwanska thought it was a fellow Aussie in Mark Philippoussis, while Garbine Muguruza had absolutely no idea.

They weren't all as puzzled however, with Heather Watson and Johanna Konta getting it right.

As you can see in the video above, it's well worth a watch.