DENVER -- It was a thousand-word picture, as a beaming, 24-year-old rookie quarterback enjoyed a moment with thousands of his newest friends, almost a decade in the making. After the Denver Broncos clinched the seventh, and final, playoff spot in the AFC with a 38-0 victory over the Kansas City Chiefs on Sunday at Empower Field at Mile High,  Bo Nix took a victory lap, high-fiving roaring, ecstatic fans around the stadium. "I learned I've got to run a little more during the week because that's a long lap,'' Nix said with a wry smile. "I was a little tired at the end. The fans deserve it, and it's been a long time coming.'' A long time indeed. Sunday's win, over a Chiefs team that rested most of its front-line players with the AFC's No. 1 seed already locked up, clinched the Broncos' first postseason trip since their Super Bowl 50 win to close the 2015 season. No player on the current roster has worn a Broncos uniform in a postseason game. Left...