Rob Gronkowski and Shaquille O’Neal are entertaining the idea of a boxing showdown, pitting NBA against NFL players. Gronkowski confidently claims he wouldn't need training to face O'Neal ...

Bryan Bedder/Getty; Daniel Boczarski/Getty; Matthew Stockman/Getty Rob "Gronk" Gronkowski's cleats may ... competition while Eli and Peyton Manning face off in attempt to score.

Gronkowski makes the case for why his former teammate is the greatest quarterback of all time in an interview with TODAY.com.