Photos: Andy Roddick rocks Mohawk

By C.W. Sesno, SI.com [slideshow] Note: All photos AFP/Getty. A new year, a new look for Andy Roddick. The 29-year-old unveiled a new hairdo at the Kooyong

By C.W. Sesno, SI.com

[slideshow] Note: All photos AFP/Getty.

A new year, a new look for Andy Roddick. The 29-year-old unveiled a new hairdo at the Kooyong Classic, a tune-up exhibition for the Australian Open that starts on Wednesday.

There are a few plausible explanations for how and why this disaster has happened:

1) With a 30th birthday around the corner, Roddick is clinging to youth.

2) Conversely, he has embraced what seems to be a receding hairline.

3) He's trying to boost his Little Giants-esque intimidation factor.

4) Jet-lag + electric hair trimmer = Bad decisions in Australia.

5) Social pressure to match his wife's weird head-thingy.

6) The Birdman calleth.

What do you think of Roddick's new 'do? Sound off in the comments and let us know.