College football underclassmen have until Jan. 14 to declare, although many already have announced a decision to leave early. Here's a look:
Updated Dec. 13
Jarrett Stidham, Auburn (6-2, 215, 4.92): Has enough arm to make most throws needed at the next level but will need to develop his ability to negotiate and throw from a tight pocket while seeing the full field.
Rodney Anderson, Oklahoma (6-1, 218. 4.59): Oft-injured, his 2018 season was cut short in September by an injury to his right knee. When healthy, he demonstrates exceptional cutback ability, power, burst and home run speed.
Darrell Henderson, Memphis (5-9, 200, 4.55): The unanimous All-American, while perhaps lacking an elite package of size and breakaway speed, possesses excellent vision, subtle shifts and has an effective stiff-arm to weave his way through defenses. Memphis hasn’t had a back this talented since the Pittsburgh Steelers made DeAngelo Williams the 27th overall pick in 2006.
Justice Hill, Oklahoma State (5-10, 185, 4.47): A strong back with extreme lower-leg strength and great vision, Hill has enough wiggle in the open field and breakaway speed to be considered a game changer.
Devin Singletary, FAU (5-9, 200, 4.52): The man they call "Motor" is a stout, strong runner who gains a tremendous amount of yardage after contact. He also possesses a true nose for the end zone, scoring 67 times in 38 career games. Expect to hear his name called by early Day 3.
A.J. Brown, Ole Miss (6-1, 230. 4.5): Brown is a classic possession receiver with first-round talent. He twice was selected first-team All-SEC.
Jovon Durante, FAU (6-0, 165): Caught 65 passes for 873 yards and five touchdowns in his only season playing for FAU after his transfer from West Virginia.
Jazz Ferguson, Northwestern State (6-2, 223, 4.54): Transfer from LSU was rated 14th among junior receivers by NFLDraftScout.com at the end of the regular season.
Kelvin Harmon, North Carolina State (6-2, 214, 4.54): Harmon's final draft grade could hinge on how he runs for the stop-watch but his physicality and body control are undeniable.
N'Keal Harry, Arizona State (6-3, 213, 4.52): With imposing size and strength, Harry has the potential to develop into a true No. 1 receiver in the NFL.
D.K. Metcalf, Ole Miss (6-3, 230): Durability concerns, but Metcalf is a smooth accelerator with an NFL ready frame. He might just be the most gifted receiver prospect in the country.
Anthony Ratliff-Williams, North Carolina (6-2, 205, 4.52): Made a surprise decision in declaring, but has speed and playmaking upside as receiver/returner.
Antoine Wesley, Texas Tech (6-4, 200, 4.52): Although some NFL teams are sure to be leery of the one-year wonder, his versatility to play inside, outside and near the line of scrimmage bodes well for his draft stock -- early to mid-rounds. (More on Wesley from Ric Serritella).
Preston Williams, Colorado State (6-3, 210, 4.58): Williams is long, fast, athletic and plays with a high energy. His route-running could use more polish but look for him to follow in the footsteps of fellow Rams' receivers Rashard Higgins and Michael Gallup as a high-round selection. He projects as a Day 2 pick.
Keenan Brown, Texas State (6-3, 250): Could have returned for sixth season of eligibility, but the Oklahoma State transfer is turning pro after season in which he caught 51 passes.
Noah Fant, Iowa (6-4, 214, 4.78): His size and tantalizing athleticism, along with his 40-inch vertical, will have NFL talent evaluators salivating. Has first-round potential.
Dax Raymond, Utah State (6-4, 250, 4.89): Made 70 career catches and has been invited to the Senior Bowl.
Caleb Wilson, UCLA (6-4, 235, 4.64): Former walk-on at USC looks like a second-round prospect after a season in which he caught 60 passes for 965 yards for the Bruins.
Greg Little, Ole Miss (6-5, 325, 5.23): The left tackle is physical, demonstrates a strong hand punch and covers a lot of ground with his kick-slide. He's No. 9 in Ric Serritella's initial 2019 mock draft.
Nick Bosa, Ohio State, (6-4, 263, 4.76): Potential No. 1 pick is an NFL-ready edge rusher, winning with a Pro Bowl-caliber combination of initial quickness, hand technique and instincts.
Jordan Brailford, Oklahoma State (6-3, 250, 4.74): Draft stock rose considerably this season, due to his position flexibility (DE, OLB, ILB) and ability to pressure the quarterback. While fast, he can also bull rush with power or use one of his dip, rip or swim moves.
Brian Burns, Florida State (6-4, 235, 4.64): Limber, lean and constantly pressuring quarterbacks, Burns has earned a reputation for his football savvy and work ethic. He's a late first-round candidate.
Rashan Gary, Michigan (6.4, 281, 4.67): While perhaps lacking the elite burst and bend off the edge of this year's top pass rushers, Gary can effectively harass the quarterback because of his prototypical blend of size, strength, awareness and refined technique.
Dre'Mont Jones, Ohio State (6-2, 295, 4.96): He can play multiple spots along the defensive front and has drawn comparisons to Tamba Hali as a smooth transitional type player who is always in excellent condition and constantly running, according to his coaches. He projects as a potential first-round pick.
Ed Oliver, Houston (6-2, 290, 4.92): His slippery explosiveness has earned comparisons to reigning NFL Defensive Player of the Year Aaron Donald. Potential No. 1 pick.
Sean Bunting, Central Michigan (6-1, 181): Good length and playmaker, with seven interceptions and 10 other pass break-ups in the past two seasons.
Xavier Crawford, Central Michigan (6-1, 180): Oregon State transfer was first-team All-MAC (like his CB teammate Sean Bunting) this season, his only year with the Chippewas.
Greedy Williams, LSU (6-2, 185. 4.5): The redshirt sophomore's length, smooth acceleration and awareness of the ball in the air have scouts drooling. He's No. 2 overall on NFLDraftScout.com analyst Ric Serritella's initial mock draft.
Chauncey Gardner-Johnson, Florida (5-11, 207, 4.52): A fast, tough, aggressive athlete, Gardner-Johnson possesses great ball anticipation but will need to clean up some of his tackling technique.