In a competition you never expected, the person who has a Jason Kelce pin-up tattoo is getting a run for their money ... 'cause someone else now has his brother, Travis, forever inked on his bod -- and TMZ Sports spoke with proud owner!!
Nick Jones -- the man with the new ink -- answered the challenge put out by Accelerator Energy Drink to get the TK pin-up ... with his reward being a ton of free product and a signed jersey.
Jones, a Dallas Cowboys fan, said he didn't want the Eagles to get even more time in the limelight following their Super Bowl LIX victory .