MMA veteran Ken Shamrock is 51 years-old, getting ready to fight Kimbo Slice in the main event at Bellator 138.

Shamrock is no doubt towards the end of his career, but in recent interviews claims that he actually feels better than he did when he was in his prime at a younger age.

Check out this recent picture he sent out on Twitter:

51 years-old ladies and gentlemen. Note: Shamrock has tested positive for PEDs in the past. Just saying.

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