Thiago Alves Undergoes Brain Surgery

WKR wishes we had the ability to pay people money for information. Instead we just have to wait for TMZ to send us emails (thanks by the way).

Here is the latest Thiago Alves update courtesy of TMZ:

We're told Pitbull will be in ICU for the next two days.

Operating room spies tell TMZ Thiago Alves just underwent an 8 hour operation to separate an artery from a vein in his brain.

Dana White tells TMZ the operation -- in a New York City hospital -- was a complete success and Pitbull's first words ... "When can I start training again?"

Dana's answer ... a couple of weeks.

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