Building NFL DFS lineups for Week 7? See what SportsLine DFS guru Jacob Gibbs has to say before you lock in your NFL DFS picks. Gibbs uses a data-driven approach that has helped him consistently provide accurate rankings at every position. He has proven to be one of the nation's most accurate Fantasy rankers in recent years, posting the eighth-most accurate results over the past few seasons, according to Fantasy Pros.

One player Gibbs is especially high on: Kansas City Chiefs running back Isiah Pacheco ($6,100 on DraftKings, $7,400 on FanDuel). Gibbs is also excited again about rostering Ravens rookie receiver Zay Flowers ($5,700 on DraftKings, $6,300 on FanDuel) as he faces a soft Bears coverage scheme.

Gibbs also is calling for an underpriced running back to score 20 or even 25 points on DraftKings and FanDuel! This player could be the difference between winning BIG or going home with nothing.

So who are the best players to target at each position in Sunday NFL DFS lineups? And which running back is set to put up a MONSTER point total? ... Join SportsLine here to see Jacob Gibbs' weekly Fantasy Football Helper, all from one of the nation's most accurate experts!