Shocking: Shark attacks swimmer Michael Phelps (Video)

Discovery Channel”, which is organizing a challenge between American swimmer Michael Phelps and a white shark, to find out which one is faster, has published a shocking video today.

Phelps is long under trial for the challenge, and at times he has plunged into the ocean in a protective cage.

And in one of these frequent dives, he has seen closely the threat of some white sharks, which with their sharp teeth have attacked the cage where the swimmer and the host staff were located.