Serbian teenager Ana Ivanovic is one the youngest and most compelling female tennis stars to come along in a long time. Unfortunately, she's also one of the least consistent, which is why she didn't last very long at the U.S....

As far as we're concerned, the game of women's tennis kind of sells itself: You have attractive women, running around in fairly skimpy clothing, hitting balls with incredible strength and, more often than not, letting out...