Two of the UFC's finest, light heavyweight champion Lyoto Machida and middleweight champion Anderson Silva will compete against boxers Manny Pacquiao and Shane Mosley for ESPN's 2009 ESPY award for Best Fighter. You can support "The Dragon" and "The Spider" by voting at www.espys.tv
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Fighter Timeline: Cain Velasquez
To kick off Hispanic Heritage Month, the Fighter Timeline series features Cain Velasquez and five of the biggest fights of his UFC career.