EXCLUSIVE

John Cena and The Rock are 2 days from squaring off for the WWE championship belt in Wrestlemania 29, but TMZ found another competition going down today -- WING-OFF 1 ... there will be bones!

We got pics of 3 WWE stars ... Yoshi Tatsu, JTG, and the Great Khali doing battle over 3 massive platters of hot wings at the Chili's in Hoboken, NJ.

We're told Khali choked down the most wings before the other 2 guys had to tap out.

Even more amazing -- we're told the enormous meals only set 'em back $40 ... and all 3 hit the gym afterward.