The Kansas City Chiefs will host the Pittsburgh Steelers in an AFC Wild Card matchup on Sunday Night Football. Kickoff at Arrowhead Stadium is set for 8:15 p.m. ET. The Chiefs are favored by 12.5 points in the latest Steelers vs. Chiefs odds from Caesars Sportsbook, while the over-under is 46.5.

Before you make any Steelers vs. Chiefs picks or any other NFL predictions, you NEED to see which side SportsLine expert Larry Hartstein is on. 

A former lead writer for Covers and The Linemakers, Hartstein combines a vast network of Vegas sources with an analytical approach he honed while working for Pro Football Focus. This season he has been on fire. Hartstein is 67-45 with his last 112 sides, for a profit of more than $1,600.

In addition, Hartstein has gone an astounding 22-8 on his last 30 picks involving Kansas City, returning $1300 to $100 bettors. Anyone who has followed him is WAY UP.

The Steelers terrorize opposing teams with an opportunistic defense. Pittsburgh led the NFL with 55 sacks this season and forced 22 turnovers. The Steelers ranked in the top five in red zone defense, allowing a touchdown on only 50.8 percent of trips, and held opponents to a 37.1 percent third down conversion rate. Pittsburgh is in the top 10 in passing defense, allowing 215.1 yards per game, and opponents completed only 63.1 percent of passes against the Steelers this season.

Led by a dynamic passing game, the Chiefs are elite on offense. Kansas City is No. 3 in the NFL in total offense, averaging 396.8 yards per game. The Chiefs are in the top five in scoring offense (28.2 points per game) and score on 48.1 percent of possessions. No team had more first downs (419) than the Chiefs, who led the league with 39.7 yards per possession and 2.72 points per possession.

Now, Hartstein has locked in another confident against the spread pick for Steelers vs. Chiefs. We can tell you he's leaning over, but he knows a crucial X-factor makes one side of the spread a MUST-BACK! You ABSOLUTELY need to see what it is before locking in any picks of your own.

Who wins Steelers vs. Chiefs? And what critical X-factor makes one side of the spread a must-back? ... Join SportsLine right now to see which side of the Steelers vs. Chiefs spread to jump on, all from the expert who's an outstanding 22-8 on Kansas City picks!