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US swimmer Michael Phelps clocked 4:07.82 Saturday night in men's 400 meter individual medley, breaking the Olympic record of 4:08.26 set by himself in Athens. [Xinhua]
![US swimmer Michael Phelps clocked 4:07.82 Saturday night in men's 400 meter individual medley, breaking the Olympic record of 4:08.26 set by himself in Athens. [Xinhua]](http://images.china.cn/attachement/jpg/site1007/20080809/000d8793de870a07d83810.jpg "US swimmer Michael Phelps clocked 4:07.82 Saturday night in men's 400 meter individual medley, breaking the Olympic record of 4:08.26 set by himself in Athens. [Xinhua]")