LeSean McCoy is pissed. He’s hanging up when Chip Kelly calls, won’t shake his hand, and photoshopped him out of all the selfies they took together.

The media love it and will explode in ecstasy if Shady runs for 279 yards today, because anger and revenge is everybody’s favorite sports narrative.

But anger cuts both ways. It fuels your effort, but clouds your judgment. As Mike Tyson said, “Everyone has a plan until they get punched in the mouth.” Then your lizard brain takes over and you forget your careful planning, flailing wildly.

One of Chip’s mantras is “Play with emotion, don’t let emotion play with you.” Overemotional players start fights, get penalties, and try to do too much on their own.

The Eagles will try to take advantage of Shady’s ego and pissiness with a combination of trash talk, game planning and inside knowledge of his moves. He might go off on them, but just as likely he’ll break a couple of big runs early, then leave the game injured in the third period after racking up 70-80 yards.

On the other hand, DeMarco Murray could use a bunch of McCoy’s anger. The latest reports say he went to Jeff Lurie last week because he thought Chip and Duce Staley were unapproachable.

Duce? You done lost everybody right there, young man. Chip, sure. He is kind of intimidating in person, a half-Belichick almost with his hard-case New England ball-busting. But your former-player position coach? No wonder DeMarco’s not hitting holes hard if he’s afraid of his own coaches.

Murray’s big free agent contract apparently turned him into a winsome high-school art student, resenting the alpha jocks and mooning over Morrissey songs.

Is he mad that he’s been demoted to fourth-string running back on the Eagles? Good. He should be furious and humiliated and raging to prove his manhood by pounding the Bills’ DL. You show ’em champ.

Because the only thing worse than playing with too much emotion is not having any at all.