Justin Boone identifies under-the-radar stashes to consider adding to your roster before they become top fantasy football waiver-wire pickups in future weeks.

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While the bar might move occasionally, the general focus is to search among the group of players who are rostered in 15% of the Yahoo leagues or less.

Jalen Coker, WR, Panthers (10% rostered)

Coker was featured in this space a couple weeks ago as a preemptive pickup who could be stashed on injured reserve until he returned to the lineup. Well, the time has come. The 23-year-old was a full participant in practice on Wednesday and appears likely to suit up as long as he can convince head coach Dave Canales he’s ready for a complete workload.

The young wideout is also desperately needed as a second playmaker in the passing game behind Carolina’s top target, Tetairoa McMillan. If it hadn’t been for a preseason quad injury, we might already be talking about Coker as a fantasy starter.

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A favorite of Yahoo’s Matt Harmon, Coker flashed in a part-time role during his rookie season. If we remove his first game where he only played 10% of the snaps, he was on pace for over 800 yards in 2024.

Now healthy, he’ll immediately step into a meaningful role in the slot. Midseason receiver breakouts are rare, but Coker has a chance to become a fantasy factor and possible WR3/flex the rest of the way.

Honorable mention: Luther Burden III, Bears (10% rostered), Christian Watson, Packers (8% rostered), Tory Horton, Seahawks (7% rostered), Isaiah Bond, Browns (5% rostered), Isaac TeSlaa, Lions (4% rostered), Ryan Flournoy, Cowboys (3% rostered)

Emanuel Wilson, RB, Packers (2% rostered)

This one is extremely deep, but hear me out. While Chris Brooks opened the season as Green Bay’s No. 2 back behind Josh Jacobs, Wilson has taken over that job in the last two weeks. 

Wilson has played 23% and 30% of the Packers’ snaps in those games and been productive with them — amassing 69 rushing yards on 14 carries and 37 receiving yards on three catches.

Coming off the bye, Matt LaFleur’s crew gets one of their easiest matchups of the year against a Bengals’ defense allowing the most fantasy points to running backs. It gets better than that, though.

In addition to letting lead backs run wild, Cincinnati has given up good days to backup runners as well, including Bhayshul Tuten (74 scrimmage yards, TD), Zavier Scott (50 yards), RJ Harvey (97 yards, TD) and David Montgomery (71 yards, TD).

With MarShawn Lloyd still on IR, Wilson is at worst a one-injury stash in case Jacobs gets hurt. However, this week you might be able to sneak him into your lineup as a flex option if you’re desperate — or just want to live dangerously.

Honorable mention: Brashard Smith, Chiefs (11% rostered), Kyle Monangai, Bears (5% rostered), Isaiah Davis, Jets (4% rostered), DJ Giddens, Colts (2% rostered), Keaton Mitchell, Ravens (1% rostered)

AJ Barner, TE, Seahawks (10% rostered)

I’ve been focused on the long-term potential of rookie Elijah Arroyo and may have overlooked Barner as an emerging fantasy contributor.

Barner played well in his limited opportunities last year and is coming through in a big way this season with four touchdowns in his past four games.

This past week, the 23-year-old saw seven targets, catching all of them for 53 yards and two of those aforementioned scores. He’s also played over 80% of the Seahawks’ snaps in four of five outings.

The truth is that Barner might be more than a deep stash, he’s someone you could genuinely consider streaming at tight end this week. His opponent this week, the Jaguars, have let Jake Tonges (3-58-1) and Travis Kelce (7-61-1) finish as top-seven fantasy tight ends the last two weeks.

Honorable mention: Isaiah Likely, Ravens (9% rostered), Michael Mayer, Raiders (1% rostered), Oronde Gadsden II, Chargers (1% rostered), Taysom Hill, Saints (9% rostered)

Joe Flacco, QB, Bengals (6% rostered)

Are you ready for the Flacco experience in Cincinnati? You should be, since this will be fun for however long it lasts.

The 40-year-old has a veteran presence that Jake Browning simply doesn’t offer and he’ll need it behind a porous offensive line. Flacco is going to take a beating on his new team, which could eventually get him hurt like Joe Burrow, but in the meantime, Flacco has the arm to offer hope for Ja’Marr Chase, Tee Higgins and Chase Brown.

Though Flacco’s early season starts for the Browns weren’t impressive, he wasn’t working with this supporting cast.

Last year, Flacco finished as a top-18 fantasy QB in five of the six games where he played the majority of the snaps for the Colts.

And if we go back to that remarkable stretch run in 2023 with the Browns, Flacco won Comeback Player of the Year thanks to five strong starts where he averaged 323 passing yards and nearly three touchdowns per contest. That was good enough to make him the second-highest scoring fantasy QB during those five weeks.

There are no guarantees Flacco can stay upright long enough to turn this Bengals’ offense around, but I’m optimistic the results will be better than what Browning was providing. Consider Flacco a QB2 streamer in deeper leagues and let’s all hope he can restore some of the fantasy value for the Bengals’ skill position stars.

Honorable mention: Mac Jones, 49ers (7% rostered), Dillon Gabriel, Browns (5% rostered), Spencer Rattler, Saints (6% rostered), Jacoby Brissett, Cardinals (0% rostered)