One of the rivalries that probably doesn't get enough attention is the one between Joey Chestnut and Kobayashi.  The two competitive eaters are regarded as two of the best ever, but there's definitely some animosity between the two.

In fact, during an interview with TMZ, Kobayashi said he's witnessed Chestnut cheat during competitions and he went on to explain exactly what he witnessed his rival do.

 

Is Kobayashi telling the truth?  While we don't have the answer to that, we do know that there could be ulterior motives at play here based on the '30 for 30' which just came out on the rivalry between them.

Earlier this month, Chestnut won his 12th Nathan's Hot Dog Eating Contest title eating 71 hot dogs.

(H/T: TMZ)