Tempers flare for Chiefs at training camp

Marcus Cooper's defense on Jeremy Maclin led to a short scuffle between the two players on Sunday at Chiefs training camp in St. Joseph.ST. JOSEPH, Mo. — It all began innocently enough. Receiver Jeremy Maclin sprinted upfield, running his trademark post route, when quarterback Alex Smith unleashed a gorgeous pass right on the money.

Then Marcus Cooper, the corner in coverage, held the back of Maclin’s collar while attempting to make a play on the ball. The pass fell incomplete, the two fell to the ground, and when both players arose, they quickly got in each other’s faces.

A push by Maclin followed, followed by a flurry of swings from both directions. And just like that, it was on.

The scuffle…