The Philadelphia Eagles and the San Francisco 49ers fielded the league’s top two defenses this season in yards allowed per game, suggesting that Sunday’s N.F.C. championship game may be a low-scoring event.
But with quarterbacks Jalen Hurts and Brock Purdy facing each other, there’s precedent for a high-scoring duel.
In November 2019 in Norman, Okla., Hurts’s Oklahoma Sooners edged out Purdy’s Iowa State Cyclones, 42-41, in a typical Big 12 barnburner.
In that game, Oklahoma built a 42-21 advantage over Iowa State in the third quarter, before Purdy brought the Cyclones…