Broncos vs. Steelers: Pregame Photo Gallery

NBC's Sunday Night Football trucks prepare for the broadcast.

DenverBroncos.com's Chris Hall and Gray Caldwell shoot the first episode of BroncosTv On Site.

A look at the field from the 20-yard line about three hours prior to kickoff.

The Denver Broncos Cheerleaders get warmed up before the game.

The pregame temperature on the field is well over 100 degrees, but is expected to fall to the mid-80s by kickoff.

From the press box, a look at the rehearsal of the pregame ceremonies and National Anthem.

A spirited Bronco fan is joined by a pair of Steelers fans.

A fan is getting his orange and blue dew ready to go before kickoff.

This fan is certainly ready for football.

Another unique costume.

Quarterback Brock Osweiler gets his arm loose before kickoff.

Wide receiver Brandon Stokley runs a route during pregame.

Tight ends Joel Dreessen and Jacob Tamme share a word during warmups.

Tight end Julius Thomas reaches for a pass.

Dreessen shows off his hops.

Linebacker Von Miller stretches his legs before kickoff.

Quarterback Peyton Manning prepares for his Denver debut.

Quarterbacks Coach Adam Gase helps the quarterbacks prepare.

Wide receiver Eric Decker catches a pass from Manning.

Safety Jim Leonhard chats with an opposing player before things get serious.

Running back Lance Ball gets in the zone prior to kickoff.

Safety Rahim Moore jumps rope in the tunnel.

The specialists practice their routine.

Rookie defensive lineman Derek Wolfe prepares for his NFL debut.

Defensive tackles Kevin Vickerson and Mitch Unrein get loose.

Rookie long snapper Aaron Brewer, who makes his NFL debut, sits with punter Britton Colquitt.

Head Coach John Fox exits the tunnel.

Manning gets loose in pads prior to kickoff.

The quarterback and head coach shake hands prior to kickoff.

Cornerback Champ Bailey makes a one-handed catch in warmups.

An inside look at NBC's production of Sunday Night Football.