Monitoring how the Vikings look under either Sam Darnold or rookie J.J.
It's a week where the top-drafted defenses draw the best matchups, meaning that again, the early returns could unearth some sleepers four weeks in. The Cowboys (@NYG), Jets (DEN) and 49ers (NE) draw the preseason's best projected Week 4 matchups, and the Browns (@LV) are up there as well, but the Dolphins (TEN), Packers (MIN) and Bengals (@CAR) stand out from a streaming perspective. Monitoring how the Vikings look under either Sam Darnold or rookie J.J. McCarthy at quarterback -- that decision alone has a big bearing -- will be critical to determining whether they're still an offense to exploit for opposing D/STs.