Law & Order: Criminal Intent Law & Order: Criminal Intent

Even though Nick Chinlund was the one throwing the punches during his guest stint on Law & Order: Criminal Intent Sunday, he probably didn't anticipate he would also be feeling the pain.

"I was very sore the next day and I wasn't the one being beat up," Chinlund says. "We were losing the light a little bit so time was an issue. It added to the urgency of getting it right so everyone was very focused."

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Luckily, the actor he had to beat down on-screen, Jack McGee, was up for anything. "He's game. He's like, 'I'll go over the bar,'" Chinlund says.

The fight is part of an episode investigating the death of a Wall Street hot shot with many enemies. Chinlund plays Jack Driscol, a Bronx businessman with a specialty in money laundering, among other enterprises.

Get a behind-the-scenes look at the fight:

Law & Order: Criminal Intent airs Sunday at 9/8c on USA.