Not to rehash last week's intro, but being in the fantasy playoffs likely means your key starters are locked in. It's always wise to stay on top of the waiver wire, however, as you never know who can provide last minute depth.

It being the semi-finals for most, this very well may be your final chance to do so. Even if you don't have anyone you can realistically drop, it's still worth it to do your due diligence by taking a look at who is available. Here's hoping you've done so all season anyway. Good luck in the semis!

Here are some deeper PPR-league sleepers for Week 15. All ownership percentages are from Yahoo leagues.

• Quarterback fantasy football rankings
• Running back fantasy football rankings
• Wide receiver fantasy football rankings
• Tight end fantasy football rankings
• Kicker fantasy football rankings
• FLEX fantasy football rankings
• Defense (D/ST) fantasy football rankings
• Superflex fantasy football rankings
• IDP fantasy football rankings
• Dynasty fantasy football rankings

Deeper PPR Sleepers For Week 15

Trey Burton - TE, Philadelphia Eagles (8% Owned)

Huge caveat here; Trey Burton's fantasy potential is limited by a couple of factors. First the obvious, the return of Zach Ertz would make Burton irrelevant. Second, you'd need to be borderline desperate at the tight end position in order to consider throwing him into your lineup in an elimination game. But with TE being as shallow as it is, that's not out of the realm of possibility. Burton had five receptions for 72 yards and two scores in Sunday's win over the Rams, showing that the Eagles are intent on keeping tight ends involved regardless of who is out there. I know some folks will be turned off at the prospect of having Nick Foles at quarterback over the injured Carson Wentz, but that shouldn't really be enough of a deterrent to knock Burton off the fantasy radar. Foles was serviceable, and Philadelphia is good enough to keep the offense moving in general. This is a speculative add that could prove fruitful under the right circumstances.

Rod Smith - RB, Dallas Cowboys (13% Owned)

I was surprised to see that Rod Smith's ownership was still floating around down at 13% but hey, that just means he's eligible for the list this week. Smith exploded for 160 total yards in Week 14, 113 of which came via the pass. The Cowboys have managed to keep both of Ezekiel Elliott's replacements involved with Smith now getting a significant edge in PPR formats. With this being the final week of Zeke's suspension, Smith will have one last opportunity to fill in in a featured role, making him worth starting in the fantasy playoffs. I would imagine his ownership is much higher in PPR leagues of at least 12 teams or more, but you should definitely double check that. He'll be a mid-level PPR flex in Week 15.

Travis Benjamin - WR, Los Angeles Chargers (14% Owned)

Speaking of one week rentals, Travis Benjamin is in line for an excellent matchup against a weak Kansas City secondary. Throw in the Chargers being hot when it counts and you're looking at a "stars are aligned" situation. Sure, Tyrell Williams would be the preferred dart throw, but not only does his ownership make him ineligible this is also looking at far deeper leagues. It's a long shot, sure, but I'd imagine there is a 14 or 16-team league out there where Benjamin is well within the conversation.

Benjamin Watson - TE, Baltimore Ravens (12% Owned)

Benjamin Watson is a frequent flier of our list this year, and an underrated one at that. The Ravens draw the Cleveland Browns in Week 15, a defense that is allowing the second most fantasy points to opposing tight ends. Burton may be the more obvious option as an Ertz replacement although Watson doesn't have has many qualifiers. He's a legitimate option for anyone simply in the streaming business.

Kerwynn Williams - RB, Arizona Cardinals (11% Owned)

Admittedly I am not the biggest Kerwynn Williams fan this year but a plethora of circumstances keep him in waiver consideration. Adrian Peterson is still banged up, the Redskins are 21st against the run this season, and quite frankly, it's slim pickings this late in the year. Williams didn't have an impressive stat line against the Titans this past season, but he did have a nice game home versus the Rams the week prior. He racked up 97 yards on 16 attempts, a respectable outing for sure. Unfortunately D.J. Foster would eat into the PPR value, but sheer volume makes Kerwynn Williams the preferred option overall.

More Waiver Wire Pickups and Analysis