Annamay Pierse, the world record holder in the 200 breast, had a few road bumps on the way to the Pan Pacific championships, including a diagnosis of a magnesium deficiency, which hampered her training. But she's ready to race in Irvine, and she'll face some tough competition.

Dec. 10, 2009: World record holder Annamay Pierse talks about the emotion of breaking the world record in the long course 200 breast semifinals of the world championships, only to win silver in the final, how Rebecca Soni's pace affected her, what it's like to be in Vancouver in the preparation for the Winter Olympics and how she's prepping for a great 2010.