Before setting your Week 13 Fantasy football lineups for the 2021 NFL season, you NEED to see what SportsLine's advanced computer model has to say. When it comes to ranking players, SportsLine's model beat human experts for the past several seasons, especially when there were big differences in ranking! That could literally be the difference between winning your league or going home empty-handed.

Last week, the model was extremely high on Buccaneers running back Leonard Fournette, ranking him as an RB1 for Week 12. The result: Fournette piled up 131 scrimmage yards and scored four touchdowns in a Buccaneers win. Anybody who had him in their lineup was well on their way to a HUGE week.

Now the model, which simulates every NFL game 10,000 times, has revealed its latest Week 13 Fantasy football rankings.

One player the model is high on this week: Vikings running back Alexander Mattison, who has a mouthwatering matchup against the Lions. And a massive shocker: Seahawks wide receiver Tyler Lockett, who was started in 88 percent of CBS Sports Fantasy football leagues last week, stumbles big-time and doesn't even crack the top 25 at his position! He's a player to consider leaving on the bench.

The model is also calling for an under-the-radar quarterback you aren't even thinking about to finish in the top six of its Fantasy football rankings, ahead of stars like Lamar Jackson and Josh Allen! This pick could be the difference between winning BIG and going home with nothing. You ABSOLUTELY need to see who it is before locking in your lineups.

So who should you start and sit in Week 13? And which surprising quarterback could lead you to victory? ... Join SportsLine now to get Fantasy football rankings for every single position, and see which shocking QB comes out of nowhere to crack the top six, all from the model that has out-performed experts big-time!