Video: Caroline Wozniacki hits a very, very bad serve

Caroline Wozniacki advanced in the Australian Open, but not after hitting an awful serve. (Aaron Favila/AP)
MELBOURNE, Australia -- Caroline Wozniacki took the long way to the third round of the Australian Open on Thursday. She bageled Christina McHale in the first set only to lose the second set easily. But the Dane recovered in the third to pull out a 6-0, 1-6, 6-2 victory. Wozniacki will face Garbine Muguruza next.
So how did things slip away so quickly for Wozniacki in that second set? You could say it's because McHale, who had won two of their three previous meetings, simply knows how to exploit her defensive weaknesses. Or you can say it was because of serves like this:
http://youtu.be/Y9dT8az6wCk
What is it about Wozniacki and Melbourne? Here's an even worse mishit in 2012:

Contributor, SI.com Nguyen is a freelance writer for SI.com, providing full coverage of professional tennis both on and off the court. Her content has become a must-read for fans and insiders to stay up-to-date with a sport that rarely rests. She has appeared on radio and TV talk shows all over the world and is one of the co-hosts of No Challenges Remaining, a weekly podcast available on iTunes. Nguyen graduated from the University of California, Irvine in 1999 and received a law degree from the University of California, Davis in 2002. She lives in the Bay Area.