Tyson adds that force is equal to mass acceleration, i.e., more mass means a force is harder to stop. The Eagles have quite a lot of mass in their offensive line, leading to a force that’s very difficult to stop from crossing the goal line.

The Eagles eventually moved the deep man of the victory formation to the line of scrimmage. The ultra-condensed formation became the team's signature. No one could mistake it for another play. Defenses began pinching in their linemen, and often lining up offsides. It didn't matter.

The play, also known as the "Brotherly Shove," has been so successful, so rewarding that even renowned physicist Neil deGrasse Tyson once deemed it nearly unstoppable from a physics perspective.

In the fourth quarter of the AFC championship game, the Buffalo Bills were nursing a 22-21 lead over the Kansas City Chiefs when they faced a fourth-and-1 on the Chiefs’ 41-yard line.

No one does the quarterback sneak, or so-called "tush push," better than the Eagles, so the Chiefs defense's only answer is to avoid short-yardage situations.

Should this play be banned? But the success we have is not replicated always throughout the entire league," Sirianni said.

Even Neil deGrasse Tyson says that the Eagles' vaunted Tush Push is unstoppable. But one Kansas City coach says "any play can be stopped."