The spread was CLE -4 before the Watson news broke. It then moved quickly all the way down to -1 after the shoulder injury news. It has now retreated back in the Browns direction to -2.5. Not sure about you guys, but whenever I see the gambling sharks moving the line in our favor, I gain more confidence in a W.
It could just as easily mean that a bunch of people started picking up Pittsburgh at -1, and the odds are adjusting to make it not so obviously easy to win.
Remember, the betting lines aren’t necessarily what Vegas thinks will happen, but rather based on what they think the gamblers think will happen.