Brock Lesnar was knocked out by Cain Velasquez in the first round at UFC 121 on Saturday night, ending his reign as the undisputed UFC Heavyweight champion just a few months after it began.

For Velasquez, the win was obviously huge. He is still undefeated, he looks like the best in the business and now, he's the first champion of Mexican heritage in the history of the company.

For Lesnar, though, the loss was devastating. He had been riding high after his victory over Shane Carwin in July, but he was brought back down to earth on Saturday.

He was dominated, dismantled and destroyed by Velasquez inside the octagon.

But was the loss really that surprising, or is Lesnar simply not as good as people thought?

Here are the top 10 reasons why Lesnar is overrated and the loss to Velasquez shouldn't have come as a shock to UFC fans.

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