I have discovered the reason for the shocking collapse this past Sunday by the Denver Broncos at the Super Bowl.

Get set for this stunner.

It’s the Sports Illustrated jinx. The jinx did in the Broncos, just as certainly as it has torpedoed other teams and individual athletes over many decades of the vaunted sports magazine’s publication.

You know about the SI jinx, yes? It’s known as the kiss of proverbial death for any team or individual athlete who graces the cover prior to a big sporting event. You’re on the cover and you’re bound to lose. The jinx is infamous in sports and media circles.

The Broncos were featured on SI’s cover not once prior to The Big Game, but twice, for criminy sakes!

The Jan. 27 edition featured full-page photo of future Hall of Fame quarterback Peyton Manning. This was SI’s Super Bowl preview edition. I cannot recall how the magazine called the game. Doesn’t matter. The Seahawks came to play, while the Denver Broncos, well, didn’t.

Then we had the previous week’s SI cover. Who do you suppose graced that page? None other than Denver wide receiver Wes Welker, the Texas Tech University standout who played several seasons for the New England Patriots before joining Manning and the Broncos this year.

It was as if SI wanted to ensure that they doomed the Broncos by putting them on the cover on consecutive weeks prior to the Super Bowl.

What’s most amazing of all is that I haven’t heard much — if any — mention of this phenomenon biting the Broncos in the backside.

I think I’ve scored a scoop.