Fantasy Football Waiver Wire Watchlist for Week 4: Streaming targets, free agent sleepers include Sam Darnold, Alexander Mattison, Austin Hooper

Now's the time for owners to stay ahead on the fantasy football waiver wire and scout potential free agent pickups. Ahead of Weeks 3 and 4, it could be smart to add guys like Sam Darnold, Alexander Mattison, Austin Hooper, and more as streaming options or lotto-ticket stashes.