Peyton whacks his thumb on a helmet, while building lead

Reuters

The Broncos are out to a 17-7 halftime lead over the Saints, but they aren’t out of the woods yet.

They have to worry about quarterback Peyton Manning’s right thumb, which he whacked on a helmet just before the two-minute warning.

Manning appeared to have some blood on the thumb, but finished the half.

He’s 11-of-16 for 178 yards and a touchdown, and has looked sharper than Drew Brees in the battle of big-name quarterbacks.

But how he responds when the Broncos take the ball to start the second half will be huge.