"One call, that's all!"

For years, attorney Morris Bart has used this slogan on billboards, TV commercials and other advertisements. Now, he's putting it to another use.

This week, Bart placed a new ad on a New Orleans billboard: 'Hey refs! One call, that's all!" The image also includes the New Orleans Saints logo.

"Just a friendly reminder to the #NFL refs from your favorite #injuryattorney!" reads a caption on Bart's Facebook page.

The billboard comes after NFL referees opted not to call a penalty on Los Angeles Rams cornerback Nickell Robey-Coleman in the final minutes of Sunday's NFC Championship after he hit Saints receiver Tommylee Lewis before the ball arrived. After the non-call, the game went into overtime and the Rams won 26-23.

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If the referees had made the call, the Saints likely would have kept the ball for the remainder of the game and won a spot in the Super Bowl.