The End of an Era?

It looks like we might soon witness the end of an era, as Kobayashi might miss his first Nathan's Hot Dog eating contest in 6 years. His claim of "jawthritis" sounds like a cop out to me... is that even a real thing?

A google search for jawthritis, excluding results that include Kobayashi or "hot dog", returns no results - seems pretty made up to me. It might be a good one to remember when you need to get out of work (or escape a really intimidating competitor) for a day.