As Schefter mentioned in his tweet, Keenum signing with Denver would be the first quarterback shoe to drop. Keenum rejuvenated his career in Minnesota last year, where he finished as the fantasy QB14 (in 15 games).
Keenum set career-highs in completions (325), attempts (481), completion percentage (67.6%), passing yards (3,547), and passing touchdowns (22). He will be an upgrade over what Denver trotted out at QB last year in Trevor Siemian, Brock Osweiler, and Paxton Lynch. Keenum reunites with Broncos senior personnel advisor (and former head coach) Gary Kubiak, who coached him in Houston for two seasons.