The London Olympics are fast approaching and it appears that Team USA has dominating athletes across the board in every event, but that isn't to say that other countries don't. While USA may have Michael Phelps, Ryan Lochte, Lolo Jones, USA basketball, and other top competitors, other top countries boast the likes of Usain Bolt, Liu Xiang, and James Magnussen.
Many of those names could spell doom for top USA athletes.
But, in the end, the outcomes are unpredictable and all we can do is watch and see what happens. Here are the five countries that pose the most risk to USA's dominance and medal count in the upcoming Olympics.