Before setting your Week 19 Fantasy baseball lineups, you need to see what our advanced computer model has to say. When it comes to ranking players, the model beat human experts in Fantasy football last season when there were big differences in ranking. And the model was closest-to-the-hole overall, meaning it best pinpointed where every player would finish each week.

Last week, the model was extremely high on Twins designated hitter Nelson Cruz, saying he'd finish in the top five at his position. The result: Cruz has six home runs already this week and has been the most productive player in Fantasy baseball. Anybody who had him in their lineup was well on their way to a huge week.

Now the model, which simulates every pitch and every at-bat 10,000 times, has revealed its rankings for Week 19 (July 29-Aug. 4).

For Week 19, we can tell you Athletics third baseman Matt Chapman, the seventh-best player at his position according to market value, stumbles big-time and barely cracks the top 20. He's a player to consider putting on the bench this week.

One player the model is high on this week: Mets second baseman Robinson Cano. The model ranks Cano as the No. 6 second baseman for Week 10 even though he's No. 17 at his position this season. He's a player you can start with confidence this week.

The model is also calling for a surprising catcher you aren't even thinking about to finish in the top five of its Week 19 rankings! 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 sit and start in Week 19? And what surprising catcher could lead you to Fantasy glory? ... Join SportsLine now to get Fantasy baseball rankings for every single position, and see which surprising catcher comes out of nowhere to crack the top five, all from the model that out-performed experts big time last season!