Swimming rivalry makes a big splash

All eyes, especially in Asia, are on the competition between Chinese Sun Yang and South Korean Park Tae-hwan. Chen Xiangfeng reports in London.

Rising Chinese swimmer Sun Yang and his South Korean counterpart Park Tae-hwan are virtually doppelgangers.

Both are considered cool and trendy. Both are often seen with black-rimmed glasses perched on their noses and huge headphones covering their ears. And both frequently travel to Australia and have trained with big-name coaches.