Beyond the fact that Gronkowski has 15 more career touchdowns than Kelce (in 32 fewer games played), Gronkowski held court as arguably the best blocking tight end in the league during his prime — a key role that Kelce has not usually been assigned in Kansas City’s offense.

Rob Gronkowski was much more involved in the blocking game than Travis Kelce is with Kansas City, and that's just the way he likes it.

Who's the greatest NFL tight end? Ask three different people and you're likely to get three different answers. Is it Tony Gonzalez? What about Rob