Fantasy football rankings are useful. They’re also occasionally wrong. Like putting pineapple on pizza wrong.

That’s where sleepers come in. For Week 5, we’re not looking for some random player buried at RB47 who needs a miracle to matter. We’re looking for players who are currently ranked outside the top 24 at their position but have enough opportunity, matchup or recent production to crash that top-24 party by Sunday night.

In other words, the rankings say “not quite.” PigSkinFantasy says “keep watching.”

Here are four players ranked too low heading into Week 5.

1. Alvin Kamara, RB — Saints

Week 5 consensus ranking: RB26

Kamara has apparently become the fantasy football equivalent of an old couch. Everyone keeps assuming he’s finished. Then you sit on him and realize there’s still some life left.

Kamara’s Week 4 performance was a perfect example. He managed only 23 rushing yards on seven carries, but he caught five passes for 35 yards and scored two touchdowns, finishing with 17.8 PPR points. That’s the Kamara fantasy formula.

The rushing efficiency can disappear completely and he can still produce because he’s involved in the passing game And that’s particularly important in Week 5.

The Saints face Minnesota, which FantasyPros currently lists as the 32nd-easiest RB matchup.

Even better, Kamara’s Week 4 receiving involvement gives him a path to production that doesn’t require him to suddenly turn back into a 25-carry workhorse.

His current consensus ranking sits at RB26. We’re going higher. Because if Kamara gets 12-15 touches with another four or five targets, he’s got plenty of ways to finish inside the top 24. And unlike some of the other sleepers on this list, we’ve already seen him put up a top-24 week.

PigSkinFantasy PPR Projection: 14.5 points

2. TreVeyon Henderson, RB — Patriots

Week 5 consensus ranking: RB30

The Patriots backfield is becoming a weekly exercise in frustration. Congratulations, fantasy managers.

You get to choose between two talented running backs who are both capable of producing, provided you correctly guess which one gets the touchdown.

Henderson is currently sitting around RB30 in Week 5 consensus rankings, despite a rest-of-season consensus that has him at RB24. That’s a pretty big clue. So is the matchup.

New England gets Las Vegas in Week 5, and the Raiders are hardly the sort of defense that makes us want to hide from an explosive running back.

Henderson’s Week 4 performance wasn’t impressive: 42 yards on 14 carries with zero receptions. But the Patriots gave him 14 touches despite the disappointing efficiency.

The bigger issue is that the workload has been relatively stable. He’s getting opportunities. He just hasn’t converted enough of them.

That’s exactly what makes him a sleeper rather than a player we’re recommending based solely on wishful thinking.

FantasyPros projects Henderson for roughly 11 carries, 49 rushing yards, 1.6 receptions and a touchdown probability around 40 percent, resulting in 10.4 projected PPR points.

We’re willing to bet on the upside. Henderson doesn’t need 20 carries. He needs one explosive run, a few receptions and a trip to the end zone. That’s enough to turn RB30 into RB18 pretty quickly.

PigSkinFantasy PPR Projection: 13.0 points

3. Denzel Boston, WR — Browns

Week 5 consensus ranking: WR30

This one might be the biggest “Are we looking at the same player?” ranking of the week. Boston is currently sitting at WR30 in Week 5 consensus rankings. He’s also currently WR16 in fantasy points per game.

That’s not a typo. Through four games, the rookie has produced 13 receptions for 284 yards and two touchdowns on 22 targets. He’s averaging 21.8 yards per reception and has already demonstrated that he can generate fantasy points without needing double-digit catches.

He’s already demonstrated a top-24 ceiling multiple times.

Boston gets the Jets in Week 5, and he’s coming off a Week 4 performance in which he led Cleveland with 89 receiving yards on four catches. He’s also averaging 71 receiving yards per game through four contests.

FantasyPros currently has him at WR30, while other experts have moved him considerably higher, including several rankings inside the top 24.

That’s where PigSkinFantasy agrees. The ranking is treating Boston like a boom-or-bust rookie. We’re treating him like a player who has already established himself as a significant part of the Browns’ passing attack.

At 6-foot-4 with an 18-yard average depth of target, he doesn’t need 10 catches. He needs one big play. And Boston specializes in those.

PigSkinFantasy PPR Projection: 14.0 points

4. Michael Mayer, TE — Raiders

Week 5 consensus ranking: TE28

This is the tight end sleeper for people who are tired of starting a guy because the rankings told them he’s “safe” and watching him finish with 2.7 points.

Mayer is different. Because the targets are starting to become impossible to ignore.

After receiving seven targets in Week 1, Mayer saw four in Week 2, three in Week 3 and then exploded to 10 targets in Week 4.

He caught eight of them for 82 yards, producing 16.2 PPR points. And that was playing beside a healthy Brock Bowers. That’s a pretty dramatic progression.

And now comes New England. FantasyPros currently ranks Mayer TE28, with a consensus range of TE26-29.

But the matchup is about as friendly as you could ask for. FantasyPros lists New England as the 32nd-easiest tight end matchup for Week 5.

More importantly, Mayer is playing virtually every down. His snap rate has climbed from 81% in Week 1 to 88% in Week 4, and his target share jumped to 20.8% last week. That’s not a random tight end getting lucky with three targets. That’s a player becoming part of the offense. The rankings haven’t caught up yet.

That’s fine. We’ll take the discount. At tight end, eight targets alone can put you in the conversation. Mayer just saw ten.

PigSkinFantasy PPR Projection: 12.0 points

The PigSkinFantasy Bottom Line

The goal with sleepers isn’t to find players nobody has heard of. It’s to find players whose current ranking doesn’t match their opportunity.

None of these players needs to score three touchdowns. That’s the point. We’re not predicting a fantasy miracle. We’re predicting a good fantasy game from players the rankings currently consider merely average. And that’s where fantasy managers can gain an edge.