The NFL Draft process is in full swing. The NFL Scouting Combine is on the horizon, and pundits are releasing mock drafts and big boards. Prospects will be risers and fallers during the pre-draft process, and Underdog pre-draft best ball fantasy football drafts are an ideal place to take advantage of mispriced rookies.
No one has a crystal ball for where all the prospects will land, but utilizing the wisdom of the crowd is one way to identify mispriced prospects. Digging into prospect scouting reports from trusted draft experts and collegiate stats is another way to locate potentially mispriced prospects. The following players are undervalued fantasy football rookies according to their average draft position (ADP).
- Fantasy Football Research & Advice
- Fantasy Football Expert Rankings
- 2026 NFL Draft Guide
- 2026 NFL Draft Scouting Reports
Undervalued Fantasy Football Rookies
KC Concepcion (WR – Texas A&M) | Underdog ADP: 125
KC Concepcion began the 2026 Underdog best ball season buried in the rankings, but he’s skyrocketed lately. Nevertheless, his ADP hasn’t climbed enough.
Concepcion is 25th on the NFL Mock Draft Database consensus big board, and he has an expected draft position of 25.4, per Grinding the Mocks. Carnell Tate (53.5 ADP), Makai Lemon (56.4 ADP), Jordyn Tyson (59 ADP) and Denzel Boston (105.7 ADP) are the four other wideouts in the top 25 on the NFL Mock Draft Database consensus big board and projected inside the first round by Grinding the Mocks.
It makes sense for Concepcion to go behind the trio of Tate, Lemon and Tyson, but the gap is probably too large. It’s also definitely too big between Concepcion and Boston. Boston’s big board rank is only two spots ahead of Concepcion’s at 23, and Boston’s expected draft position is only 1.4 picks before Concepcion’s. A 20-pick gap in ADP between Concepcion and Boston is laughable, considering it wouldn’t be terribly shocking for Concepcion to get picked before Boston in the NFL Draft.
Concepcion also has notable fans in the draft community.
KC Concepcion is a shit ton of fun to watch.
ALOT to love about his game.
Inside/Outside versatility
Strong at the catch point
Explosive/easy speed (high 4.3/4.4)
Offers some YAC/MTF
Route running chopsDon’t be surprised if he gets Rd 1 buzz after @seniorbowl
— Derek Brown (@DBro_FFB) January 8, 2026
The Athletic’s Dane Brugler ranked Concepcion 22nd on his big board; Boston is 25th. Still, Brett Whitefield of Fantasy Points is driving Concepcion’s bandwagon, as evidenced by ranking him ninth on his big board for Fantasy Points.
IT’S HERE!!@BGWhitefield‘s Big Board is out!
Will be updated every week. https://t.co/vW2jSacXlW pic.twitter.com/RLvqkifVJX
— Scott Barrett (@ScottBarrettDFB) February 12, 2026
Concepcion is a value at his fantasy football ADP.
Emmett Johnson (RB – Nebraska) | Underdog ADP: 129.8
Emmett Johnson had a highly productive final collegiate season for Nebraska. According to Pro Football Focus (PFF), he recorded the following stats in 12 games last season:
- 251 rush attempts (20.9 per game)
- 1,450 rushing yards (120.8 per game)
- 5.8 yards per carry
- 2.95 yards after contact per attempt
- 36 rushes of 10+ yards
- 12 rushing touchdowns
- 1 fumble
- 68 missed tackles forced (0.27 missed tackles forced per attempt)
- 54 targets (4.5 per game)
- 0.19 targets per route run (TPRR)
- 46 receptions (3.8 per game)
- 370 receiving yards (30.8 per game)
- 1.27 yards per route run (YPRR)
- 1.0-yard average depth of target (aDOT)
- 3 receiving touchdowns
Johnson did it all for the Cornhuskers. His well-rounded chops are ideal for hitting the ground running in the NFL. Heis 84th on the NFL Mock Draft Database big board, making him the fourth-ranked running back behind Jeremiyah Love (ninth), Jadarian Price (63rd) and Jonah Coleman (67th).
Johnson was more productive than Coleman in their final collegiate seasons, but Coleman has an ADP of 116.3, which is just over a round earlier than Johnson’s. Johnson should be picked roughly a round earlier than he is in Underdog drafts, making him a reasonable value for running back-needy drafters as early as the 10th round.
Omar Cooper Jr. (WR – Indiana) | Underdog ADP: 191.9
Among FBS wide receivers with at least 60 targets in 2025 in this year’s draft class, Omar Cooper Jr. was fifth in PFF receiving grade (86), trailing Makai Lemon (91.4), Carnell Tate (89), Elijah Sarratt (87.3) and Denzel Boston (87.2). Out of that same sample, Cooper was also tied for 12th in yards per route run (2.55), tied for 10th in yards after the catch per reception (7.2) and tied for third in touchdown receptions (13).
Cooper is 27th on Dane Brugler’s big board, only two spots behind Boston and five behind KC Concepcion. Moreover, Todd McShay highlighted him as an underrated prospect to know before the NFL Scouting Combine and lumped him into a group of wideouts “vying for early round two consideration.” Cooper’s ADP will skyrocket in summer best ball drafts if he’s picked inside the top 40 in the NFL Draft.
Mike Washington Jr. (RB – Arkansas) | Underdog ADP: 224.4
The film breakdown by Derek Brown and Joe Pisapia for Mike Washington Jr. on our Twitch channel is must-watch content. Washington is built like a bell-cow back, runs to his size and can contribute as a receiver, giving him a three-down skill set.
In 12 games for Arkansas in 2025, Washington recorded the following numbers:
- 167 rush attempts (13.9 per game)
- 1,066 rushing yards (88.8 per game)
- 6.4 yards per carry
- 3.86 yards after contact per attempt
- 30 rushes for 10-plus yards
- 8 rushing touchdowns
- 34 missed tackles forced (0.20 missed tackles forced per attempt)
- 36 targets (3.0 per game)
- 0.16 TPRR
- 28 receptions (2.3 per game)
- 226 receiving yards (18.8 per game)
- 0.99 YPRR
- 1 receiving touchdown
Interestingly, Washington is 101 on the NFL Mock Draft Database consensus big board, ahead of Kaytron Allen (107) and Nicholas Singleton (123). Allen’s ADP is 171.4, and Singleton’s is 190.5. Allen’s ADP is reasonable, and Singleton and Washington should be in closer proximity to Allen.
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Josh Shepardson is a featured writer at FantasyPros. For more from Josh, check out his archive and follow him @BChad50.
