With three medals of any color at the London Olympics, Michael Phelps will become the most decorated Olympian of all time.
The 27-year-old American swimmer amassed six gold medals in the 2004 Athens Olympics, and another eight in Beijing, but this time around the competition is a lot tougher.
In the last Games of his stellar career, Phelps is expecting an emotionally draining week as he competes for seven medals.
Source: SNTV
Editor: Yao Yuzhi (Intern)
Voiceover: Chris Clark
Producer: Flora Yue