Serena Williams Reveals She Ate Dog Food in Snapchat Video

As one of the elite sportspeople in the world at the moment, tennis star Serena Williams will always have to be careful when it comes to her diet. But her followers on Snapchat would have been surprised when the world No. 1 posted a story that shows her trying some of her dog's food.

In the clip, Williams, a 21-time Grand Slam winner, is perusing a list of gourmet food for her canine companion, Chip.

As we can see, she couldn't resist trying some:

After tasting the tiny portion of salmon and rice, the 34-year-old, perhaps unsurprisingly, said she was feeling nauseated.

Williams is in Rome at the moment, continuing her preparations for the French Open in the Internazionali BNL d'Italia.