10 Toughest Bastards In UFC History

The Spider is a freak of nature when it comes to MMA. As in, Anderson Silva is the best to ever compete in the sport.

That's certainly a bold statement, but it's also a very true statement.

Silva is a true icon of UFC and MMA, and his UFC Middleweight Championship reign lasted a jaw-dropping 2,457 days. But while the Brazilian is known for his showboating and for even offering up free shots to opponents, he's also one tough ol' bastard.

For the casual UFC fan, it's hard to really determine just how tough Anderson Silva is due to the fact that he won so many fights with such ease. In his first seven years with UFC, Silva went on a ridiculous 16-fight win streak before Chris Weidman knocked him at in 2007.

When Silva's has been called to show his toughness, though, he's more than proven just how tough he is - a perfect example being the utter beating he took from Chael Sonnen for four rounds, before turning the tide and getting a tap-out victory in the final moments of Round 5 back at UFC 117.