Surgery was required and performed successfully yesterday and Yamamoto should make a full recovery, but will be out of action for the rest of this year.

Yamamoto is currently riding a fourteen fight win streak which includes big wins over Jeff Curren, Royler Gracie and Caol Uno, but the 5'4" dynamo hasn't competed since New Years Eve and will now have to go through well over a year of inactivity before his next fight.

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