Peyton Manning and Mike Vanderjagt
The hatred here went in one direction. Manning had no time for his former teammate, Vanderjagt, and infamously described him as ‘that idiot kicker.’ The quarterback said this in a public interview and knew everybody would pick up on his words.

Vanderjagt was a polarizing figure who sometimes said questionable things while drinking. He understandably didn’t appreciate Manning’s evaluation of his character and now the pair loath each other. Manning didn’t like Vanderjagt’s drinking and was vocal about that. It’s safe to say they won’t be sending Christmas cards to each other anytime soon (via The Sports Rush).