Fantasy Football Week 4 PPR rankings: Full positional rankings include Chris Olave at WR18

Before you set your Fantasy Football Week 4 lineups or lock in your DFS picks for this weekend's games, you need to see what SportsLine's highly-rated expert Jacob Gibbs has to say. 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 three seasons, according to Fantasy Pros.

Now, Gibbs has projected every Fantasy-relevant player's stats for Week 4. One player Gibbs is especially high on: New Orleans rookie wideout Chris Olave. Olave has an expert consensus ranking of WR25, according to FantasyPros, but Gibbs has him ranked 18th at his position this week.

Gibbs also is calling for a running back you aren't even thinking about to finish in the top 25 at his position! 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 Week 4? And which RB that you aren't thinking about is set to put up a monster point total? ... Join SportsLine here to see Jacob Gibbs' weekly Fantasy Football Rankings, all from one of the nation's most accurate experts!