AP

Cowboys running back Lance Dunbar says that in training camp, once he’s been wrapped up by a linebacker, the linebacker should let go. Cowboys linebacker Ernie Sims says that when he’s got a chance to take a ball carrier to the ground, he’s going to do it.

So it was only a matter of time before Sims took Dunbar to the ground, and a fight broke out.

“It was the second time today doing that,’’ Dunbar told the Dallas Morning News. “It’s been happening all camp and I’ve been letting it slide. I got tired of it.”

Sims believes his job is to tackle.

“That’s the name of the game,” Sims said several days ago. “The position I play is to hit people. That’s what I like doing. I like running, I like hitting. That’s what you should expect out of me.”

And Sims should expect Dunbar to take exception to getting tackled.