Bo Nix was in high school the last time the Denver Broncos qualified for the playoffs.Should the rookie quarterback snap his team’s two-game losing streak on Sunday against the visiting Kansas City Chiefs (15-1), Denver would clinch the No. 7 seed in the AFC playoffs.It would be the first playoff berth for the Broncos since they won Super Bowl 50 during the 2015 season.Nix has thrown for 3,454 yards and completed 65.1 percent of his passes with 25 touchdowns and 12 interceptions. Even though the Miami Dolphins (8-8) and Cincinnati Bengals (8-8) are next in line should the Broncos slip up against the Chiefs, Nix insisted he doesn’t feel any stress.”I think this lifestyle, the situation as quarterbacks, we live with pressure, it’s second nature at this point,” Nix said. “I believe pressure is a privilege and I was taught that a long time ago.”Because the Chiefs already wrapped up the No. 1 seed in the AFC and a first-round bye in the playoffs with a 29-10 Christmas win at the Pittsburgh Steelers, starting quarterback and three-time Super Bowl MVP Patrick Mahomes won’t play.Chiefs coach Andy Reid said Carson Wentz will start at quarterback and a number of other starters will sit out or see limited action. The Chiefs want to be well rested as they attempt to become the first team to win a third straight Super Bowl.Regardless of which players see the field, Denver coach Sean Payton said roster limits mean the Broncos will still be challenged.”Our focus has got to be on this team in general,” said Payton, whose team lost 16-14 at Kansas City in Week 10. “There will be some different people in different places, I’m sure. But this is not like college. We don’t have a roster of 105 players.”Competing against the Kansas City defense in practice has prepared Wentz. The Chiefs own the No. 2 scoring defense in the NFL, allowing 18.0 points per game. The Broncos check in fifth at 19.4 points per game.