After crushing Brock Lesnar, Alistair Overeem was seemingly on top of the world. He was the No. 1 heavyweight contender and had a fight already lined up against the champion Junior dos Santos at UFC 146.

After failing his pre-fight drug test, his dream of becoming the UFC heavyweight champion of the world is in jeopardy.

https://twitter.com/#!/jeffersonlives/status/187644324106878978

https://twitter.com/#!/fedessadb/status/187646047743508481

https://twitter.com/#!/wowshow/status/187644737895936000

https://twitter.com/#!/SeeMeDaggie/status/187645495596953600

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