2012 Olympians to Watch

In 2008, Phelps had arguably the most dominating single Games performance in Olympic history, winning a record eight gold medals. After a tabloid scandal and disappointing results in 2010, many wondered if Phelps still had the desire to push himself to his peak. He has since had a resurgence in 2011, but will be tested in London like never before by teammate Ryan Lochte among others.