As tough as it might be sometimes, you can’t let past performances dictate how you view players going forward. Obviously, it’s a factor, but Weeks 1-3 are in the past – you can’t change them. You have to worry about Weeks 4-13 (and hopefully beyond). That means investing in slow-starting players who are still getting ample opportunities or parting ways with your early-season breakouts who might have already peaked. Don’t consider anyone on your roster “untouchable.”

MORE FROM FANTASY PROS: Trade analyzer

As we caution every week, values can change quickly in fantasy football, so don’t get too locked in on a certain trade target. Change your thinking as the trends change, but don’t be afraid to strike if you have a good offer on the table. –  Matt Lutovsky

MORE WEEK 4: Top waiver pickups

Week 4 Fantasy Football Stock Watch: Buy-low candidates

Joe Mixon (RB – CIN)

Wait, buy Mixon? You mean the guy who has 157 total yards without a touchdown through three games? Yep. He’s a three-down back who was a similar buy-low early last year and finished as a top-eight running back over the second half of the season. As teams start to respect Joe Burrow through the air, lanes will open for Mixon. If you’re able to flip someone like James Robinson for Mixon, I’d consider that a phenomenal opportunity.

Darrell Henderson (RB – LAR)

Some might be thinking it’s time to sell on Henderson with the pending return of Cam Akers (ribs), but if you’ve watched the past two weeks, Henderson has been the best running back on the team, and it hasn’t even been close. He’s running with purpose and has done well in two less-than-ideal matchups. If he continues to hold onto this job, he’s going to help win fantasy titles.

Darius Slayton (WR – NYG)

For more buy-low targets from Fantasy Pros, click here.

WEEK 4 STANDARD RANKINGS:Quarterback | Running back | Wide receiver | Tight End | D/ST | Kicker

Week 4 Fantasy Football Stock Watch: Sell-high candidates

James Robinson (RB – JAC)

Todd Gurley (RB – ATL)

Take advantage of Gurley’s touchdown in Week 3 and sell high. I’m not sure he’s the best running back on his team at this point, and that’s not even saying much, as Brian Hill isn’t uber-talented or anything. Gurley is only getting what’s blocked and isn’t contributing in the passing game. He’s nothing more than a touchdown-dependent low-end RB2/high-end RB3.

WEEK 4 PPR RANKINGS:Quarterback | Running back | Wide receiver | Tight End | D/ST | Kicker

Deebo Samuel (WR – SF)

For more sell-high targets from Fantasy Pros, click here.