The Pittsburgh Steelers and the Baltimore Ravens will face off in a playoff final on Sunday night. It could also be a special occasion for the two coaches.

For years, Pittsburgh Steelers vs. Baltimore Ravens was also the duel between Mike Tomlin and John Harbaugh. They are two coaching veterans – Tomlin took over the Steelers in 2007, Harbaugh the Ravens in 2008. On Sunday night, the two AFC North rivals will face off in the final for a place in the NFL playoffs. The winner will make it to the postseason. For the two coaches, it will be their 40th duel.

That is the second-highest number for a coaching duel in NFL history. They are only surpassed by George Halas and Curly Lambeau, who coached against each other in a total of 49 games between 1921 and 1953.

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What makes Steelers vs. Ravens special is not only the sporting nature of the final, but also the personnel involved. Tomlin and Harbaugh may not be sitting directly in the “hot seat,” but a defeat would at least not completely rule out their dismissal.

Tomlin leads Harbaugh 22-17 in head-to-head comparisons.