Serena Williams was alerted by security and fled to her panic room and called 911 because she thought there was an intruder on her premises! Luckily though, it was just a mix up, and she mistook a random drug tester for an unspecified tennis association for a burglar/prowler!
All the dude wanted was to test her, but come on! We can understand showing up unannounced to people can't prepare, but at 6am??
We would've freaked out too!
Glad everything is okay!
[Image via WENN.]