Fantasy: Which WR will be this season's waiver-wire hero?

As the NFL continues to morph into a pass-first (and pass-second, and pass-third) league, more receivers than ever before will become significant fantasy producers.

Here are three wide receivers going undrafted in many fantasy leagues who have a chance to be this year's waiver-wire hero.

Average draft position (ADP) data courtesy of FantasyPros and is based on 12-team leagues with standard scoring.

Mohamed Sanu, Falcons

ADP: WR64

Julio Jones is a beast and the unquestioned receiver to own in Atlanta, but fantasy owners should be careful not to overlook what Sanu is capable of. Sanu saw 15 red-zone targets in 2016 (four more than Jones, surprisingly) but managed only four touchdowns. If Sanu can be more efficient this year, his fantasy value will rise. If Jones were to get hurt, Sanu's fantasy stock would skyrocket.

Devin Funchess, Panthers

ADP: Undrafted

The Panthers spoke openly this offseason about finding better ways to use Funchess, a big-bodied receiver who has been relatively quiet in his first two seasons as a pro. Part of the reason for that could be the team's waning faith in Kelvin Benjamin, who looked slow and out of shape at offseason practice. Funchess must develop a stronger rapport with Cam Newton, but it's conceivable he could surpass both Benjamin and the aging Greg Olsen as Newton's preferred red-zone target.

Kamar Aiken, Colts

ADP: Undrafted

Largely forgotten by fantasy owners in 2016 after scoring five touchdowns and approaching 1,000 yards receiving in 2015, Aiken has moved on to Indianapolis and will catch passes from Andrew Luck. The Colts' receiving corps largely lacks physicality, something Aiken should be able to offer. All he needs to do to earn snaps is beat out Phillip Dorsett.

(Photos courtesy: Action Images)