Of course, the final call will still lay with the ref, regardless of what their smartwatch says. It's easy to imagine how career refs could even feel resentful of being replaced by what amounts to a very sophisticated CCTV system—I wonder if that, in and of itself, could affect the way calls are made this year. We'll get a chance to see this afternoon at 4PM EST, when the first game kicks off. [GoalControl; PhysOrg]