Week 4 is coming on the NFL schedule, and so is the bane of fantasy football owners’ existence. Bye weeks start this week, and carry on through Week 12 with at least two teams idle each week.

So roster depth is going to become very important, and here are nine must-adds from your Week 4 fantasy football waiver wire.

Calvin Ridley, WR, Atlanta Falcons

After being targeted twice and going catchless in Week 1, Ridley rebounded with four catches (on five targets) for 64 yards and a touchdown in Week 2. But he really took off on Sunday, with seven receptions for 146 yards and three touchdowns against the New Orleans Saints.

Ridley has 13 targets over the last two games, compared to nine targets for Mohamed Sanu over that span (six catches for 55 yards and a touchdown). If not for Sanu’s heavy involvement in the second half of Week 3, the target gap between he and Ridley would more directly reflect the production gap.

Ridley’s ownership rates rose after Week 2, but coming from where they were there’s still plenty of room to add him this week. Now’s the time to get him as a WR3/WR4 in 12-team leagues with weekly starter upside, before it’s too late.

ESPN Ownership: 40.8%
Yahoo! Ownership: 43%