Serena Williams made herself ill after eating dog food hours before reaching the last eight of the Italian Open.
The world number one tried "a spoonful" of food meant for her dog Chip before beating fellow American Christina McHale in straight sets in Rome.
"I thought 'what the heck, I'm gonna try a piece, it looks good'," said the 34-year-old.
"Fast forward two hours - I just ran to the toilet like I thought I was going to pass out."
In a video posted on Snapchat before her match with McHale, Williams explained she sampled a dish of chicken and rice offered on a 'doggy menu' at her hotel.