Fantasy football last-minute pickups: Justin Fields and emerging running backs, tight ends - ESPN

It's Week 4 of the fantasy football season, and with all the injuries across the league, plus the inconsistent scoring at key positions, managers (like myself) are looking for streaming options to give their lineups a boost.

There is some emerging talent at the running back position, including a couple of rookies who are seeing a boost in volume and production. There are also multiple tight ends worth a look this week, but let's start with three quarterbacks who fit in deeper-league lineups.

Players listed below are deeper-league targets, rostered in less than 50% of ESPN leagues entering this week's waiver period. Although you might notice overlap with Eric Moody's waiver wire column that publishes on Mondays, an important distinction is that the options mentioned in this column are solely for this week's matchups and not based on the players' values for the remainder of the season.

Justin Fields, Pittsburgh Steelers (31.9% rostered; at Colts)

The Week 3 tape on Fields is good. He posted a season-high 18.4 fantasy points in the win over the Chargers, throwing the ball with efficiency (78.1% completion rate), while also creating more explosive plays in the pass game. Fields finished with 245 yards and score through the air, while adding a rushing touchdown. We know Fields brings a dual-threat element to the lineup, as has logged at least six carries in all three games played this season, but it's the boost in the passing totals that makes him a solid streaming option against a Colts defense that just surrendered 363 passing yards to rookie Caleb Williams.

Sam Darnold, Minnesota Vikings (40.0% rostered; at Packers)

Darnold is scheduled to have an MRI on his knee after briefly exiting the Week 3 victory versus Houston,