From the video

Video: Week 1 Fantasy Football RB Rankings (Top 43)
go out and pick up his backup, Kalon Black, the rookie. You want to have him on your bench because if this does go south at some point, he's the guy that you're going to want to have in this backfield.
Mentioned at 13:51 – 14:44Captured by STACKED 3 hr after posting

STACKED’s take

Positive signalSleeper

High-priority handcuff to stash on benches

The source recommends rostering Kalon Black as a high-priority handcuff, noting that he is the primary backup to target if the starter's health situation deteriorates.

Kaelon Black headshotKaelon BlackRB · SFPlayer page — value, ADP, projections, and every insight