Some bright baseball guy dropped a bomb, and the trade-rumor meister picked it up and ran amuck with it.

It traveled from CBSSports.com to Fox to ESPN – and soon it was splashing all over the Internet. It quickly hit the Detroit media outlets. And there it was the hot topic on sports radio, pro and con.

This one went ka-boom, squarely on target.

Prince Fielder for Ian Kinsler. Plus 30 million of Mike Ilitch’s bucks to allow the Tigers to off-load Fielder and his incomprehensibly exorbitant contract to the Texas Rangers.

A bit under two years ago we were congratulating Dave Dombrowski and Ilitch for their baseball acumen in signing Fielder for $214 million over nine seasons.

Immediately, it was assumed that the Tigers were destined to become a World Series dynasty. A bit of juggling, Miguel Cabrera ceding first base to Fielder and switching to third base – and presto.

Well, presto, the Tigers did win a pennant last year before a pratfall sweep by the Giants in the World Series. And they should have won another pennant this year but somehow flopped over in the AL Championship Series to the Red Sox.

Fielder hit some prodigious home runs with Detroit. He also snatched some nachos from a fan ducking a foul ball near first base; he was unproductive in postseason competition – and showed that he had a problem reaching home plate from third base.

Quickly, Fielder was targeted as the villain, booed out of town – the town where he grew up.

And now Dombrowski is being congratulated for dumping Fielder to the Rangers, and saving the bulk of the money due.

To be fair, Dombrowski is no longer pitching a shutout.

Previously, he swindled the Marlins for Cabrera and Anibal Sanchez, the Diamondbacks for Max Scherzer and the Mariners for Doug Fister.

But the Tigers have yet to win a World Series under Ilitch’s proprietorship and with the maneuverings of Dombrowski.

Still, Dombrowski remains the smartest and swiftest general manager in Major League Baseball. My opinion.

Trade gossip makes up most of the hot allure of baseball in November.

And it is well-documented that most of these trade-rumor bombs fizzle out.

I’d say 90 percent are duds.

Fielder-for-Kinsler was a snappily constructed deal. Then the news squirted out and traveled non-stop. Credit Jon Heyman, of CBSSports.com, for a genuine journalism scoop. They are rare.

And this past week’s blockbuster trade comes with a series of potent aftershocks.

Obviously, Cabrera will return to first base, where he belongs. Then again Cabrera benefited with Fielder hitting behind him. Fielder’s potential danger certainly helped Cabrera win his two American League’s most valuable player awards.