I get why the Browns are such heavy favorites. I just don't trust them even though the Steelers will be sitting a number of starters, including Ben Roethlisberger and T.J. Watt, who probably will be named Defensive Player of the Year. 
How proven and mature are the Browns in must-win spots when they are heavy chalk? How sharp is first-year Browns coach Kevin Stefanski when he had Baker Mayfield launch 53 passes against the Jets last week when his team was missing their top four wide receivers and had all inexperienced wideouts? How in sync will the Browns be having to deal with a heavy dose of COVID issues the past couple of weeks?
As it is, the Browns will be minus their top cornerback, Denzel Ward, along with several other players due to COVID. Cleveland is expected to get back two key offensive linemen, Wyatt Teller and Jedrick Wills. But that's not a given. Wills was supposed to play last week, but was a last-minute scratch. 
The Steelers are still the Steelers, a well-coached team with a lot of pride that could earn the No. 2 seed in the AFC with a win and a Bills loss to the Dolphins. Pittsburgh is 22-8-2 ATS the past 32 times as an underdog for a long-term percentage of 73 percent in that role. Cleveland is 2-5 ATS the past seven times as favorites this season. 
Mason Rudolph proved to be a stiff when called upon last season. I joked that Myles Garrett made a huge mistake by trying to injure Rudolph knocking him out of the game. Rudolph, in his third season, is said to be improved. Certainly he's not going to lack motivation. If I were a member of the Steelers, I would take it as an insult that Stefanski named Garrett team captain for this game after Garrett's reprehensible helmet-hitting actions against Rudolph last season. These teams don't exactly love each other. 
Bottom line for the Browns is they need to win. But they don't need to win by double-digits.