On Tuesday, we learned that Denver Broncos quarterback Bo Nix had gone back under the knife for a "cleanup" procedure on the ankle he fractured and had surgically repaired back in January. Ian Rapoport reported it was an "anticipated" procedure, but if that's true, fans will be curious to know why the team has said all offseason that Nix is ahead of schedule in his recovery. I'm sure the Broncos anticipated the "scheduled recheck." But did Nix or the team have any reason to believe he'd have to undergo a cleanup procedure that would alter his timeline? That's where we get into some gray area, as over draft weekend, head coach Sean Payton mentioned Nix's upcoming "recheck," but said there was "nothing to report." And perhaps there wasn't anything to report at that moment because the appointment with Dr. Waldrop hadn't happened yet. But there are reasons why fans are feeling a little blind-sided right now.…