Bo Nix is ​​trying to get the biggest win of his young NFL career.

Nix and the Denver Broncos (5-4) face undefeated Kansas City (8-0) and enter Sunday’s game as deep underdogs. The rookie quarterback and Broncos starter didn’t read the script and quickly jumped out to a lead against the two-time Super Bowl champions.

Nix has scored two goals in the game so far; this included a 32-yard touchdown pass to wide receiver Courtland Sutton to stun Kansas City in the second quarter.

The scoring pass gave the Broncos a 14-3 lead.

Nix also completed a 6-yard touchdown pass to wide receiver Devaughn Vele in the first quarter.

Nix completed 14 of 20 passes for 160 yards and two touchdowns as the Broncos took a 14-10 halftime lead.