What happened: Jaylen Waddle is beginning his first training camp in Denver after joining the club this offseason. He said in June that he had already begun building chemistry with Bo Nix.

Why it matters: Waddle adds a proven downfield threat as Nix enters his third NFL season. Their progress will help determine whether Denver can extend last season’s postseason run.

What to watch: Training camp will test how quickly their timing develops before the preseason begins.