Week 12 of the NFL season culminates with a blockbuster matchup between the Los Angeles Rams and Baltimore Ravens on Monday Night Football at the Los Angeles Memorial Coliseum. Kickoff is 8:15 p.m. ET. Baltimore is a 3.5-point favorite, while the over-under for total points scored is 47. 

Before locking in any Ravens vs. Rams picks of your own, you NEED to see what Mike Tierney has to say. The veteran sportswriter, whose work has appeared in The New York Times and Los Angeles Times, has covered football of all levels for decades. And that expertise has been evident since he joined SportsLine in 2016. Last season he went 63-46 with his against-the-spread picks in the NFL.

What's more, he has had a particularly keen eye for the Ravens, posting an incredible 7-0 record on his last seven against the spread picks involving Baltimore and a 10-0 record on his last 10 picks of any kind involving the Ravens! Anyone who has followed him is WAY UP.

Now he's studied Ravens vs. Rams from every possible angle. We can tell you he's leaning Under, and he's also found a critical X-factor that has him jumping all over one side of the spread. You ABSOLUTELY need to see it before you lock in your own picks.

So who wins Ravens vs. Rams on Monday Night Football? And what critical X-factor makes one side of the spread a must-back? ... Join SportsLine right now to see which side of the Ravens vs. Rams spread you should be all over on Monday, all from the proven football expert who's hit 10 straight picks involving the Ravens!