On the mark

ALDON SMITH isn't the only one making a run at the NFL record book. We scout out four other under-the-radar marks that are in the crosshairs down the stretch, then predict whether they will stand or fall.

Game-winning drives, career

Peyton Manning: 49
Record holder: Dan Marino, 51
When Marino retired after the 1999 season, he held almost every significant NFL passing mark. Over the years, many have fallen, one by one. Next up: game-winning drives. Through 12 games, Manning had three late-game rallies, with a 122.3 fourth-quarter passer rating in close games.