London 2012: 100 athletes to watch out for
Michael Phelps
3 of 100
Sport: Swimming
Age: 27
Country: USA
Having won eight medals at Beijing, and all of them Gold, no doubt all eye would be on this champion swimmer. Even though Phelps has withdrawn from the 200 m freestyle, it doesn't take the excitement away from the defending champion. With just three more medals, Phelps can become the most celebrated Olympian across all sports.
Advertisement
