Five things you didn't know about Petkovic

Andrea Petkovic, the WTA's resident dancer and self-made social-media maven, posted a new "Petkorazzi" video on Friday. The clip shows her singing a Turkish

Andrea Petkovic, the WTA's resident dancer and self-made social-media maven, posted a new "Petkorazzi" video on Friday. The clip shows her singing a Turkish song, pulling a Sydney Bristow on a hapless golfer, reminiscing about her Backstreet Boy-loving days and breaking Feliciano Lopez's heart.

It's a must-watch.