Roger Federer faces pesky foe in new ad

https://www.youtube.com/watch?feature=player_embedded&v=lMlPjXh49VY#
Roger Federer posted on Facebook this week a random picture of a fly on the wall. Now we know why: The post was a tease for his new Nike ad, which involves Federer's struggling to kill a fly in his house.
How does that saying go? Those who live in glass houses shouldn't throw sneakers?

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.