"Survivor" alum and "The Challenge: USA" contestant Tyson Apostol thinks he could wipe the floor with the OG's of the MTV program ... but series staple Johnny Bananas thinks he has no clue what he's talkin' about.
We got Johnny in New York Tuesday ... and he thinks Tyson's claims aren't holding up -- adding the reality star is a little too new to the series to be yappin' his mouth.
Simply put -- Johnny doesn't think TA's ready to run with the big boys.
In case you missed it, Tyson's been a standout contestant on the CBS spinoff, but last month he called out a majority of the cast on Twitter .