Mike Mayock NFL Mock Draft 2018: Sam Darnold, Saquon Barkley Go No. 1, 2

Many have speculated how the first round of the 2018 NFL draft will unfold Thursday, and NFL Network's Mike Mayock weighed in with his final mock draft Wednesday.

Mayock projected the Cleveland Browns to select USC Trojans quarterback Sam Darnold with the No. 1 overall pick, while he had the New York Giants adding Penn State Nittany Lions running back Saquon Barkley with the second pick.

Here's Mayock's full mock draft:

Mike Mayock's 2018 Mock Draft

1. Cleveland Browns: Sam Darnold, QB, USC

2. New York Giants: Saquon Barkley, RB, Penn State

3. New York Jets: Baker Mayfield, QB, Oklahoma

4. Cleveland Browns: Bradley Chubb, DE, North Carolina State

5. Denver Broncos: Quenton Nelson, OG, Notre Dame

6. Buffalo Bills (projected trade w/Indianapolis Colts): Josh Allen, QB, Wyoming

7. Tampa Bay Buccaneers: Derwin James, S, Florida State

8. Chicago Bears: Roquan Smith, LB, Georgia

9. San Francisco 49ers: Denzel Ward, CB, Ohio State

10. Oakland Raiders: Mike McGlinchey, OT, Notre Dame

11. Miami Dolphins: Tremaine Edmunds, LB, Virginia Tech

12. Buffalo Bills: Minkah Fitzpatrick, S, Alabama

13. Washington Redskins: Vita Vea, DT, Washington

14. Green Bay Packers: Jaire Alexander, CB, Louisville

15. Arizona Cardinals: Josh Rosen, QB, UCLA

16. Baltimore Ravens: Lamar Jackson, QB, Louisville

17. Los Angeles Chargers: Da'Ron Payne, DT, Alabama

18. Seattle Seahawks: Marcus Davenport, DE, UTSA

19. Dallas Cowboys: Courtland Sutton, WR, SMU

20. Detroit Lions: Harold Landry, DE, Boston College

21. Cincinnati Bengals: Frank Ragnow, C, Arkansas

22. Indianapolis Colts (proposed trade w/Buffalo Bills): Isaiah Wynn, G, Georgia

23. New England Patriots: Kolton Miller, OT, UCLA

24. Carolina Panthers: Calvin Ridley, WR, Alabama

25. Tennessee Titans: Rashaan Evans, LB, Alabama

26. Atlanta Falcons: Taven Bryan, DT, Florida

27. New Orleans Saints: D.J. Moore, WR, Maryland

28. Pittsburgh Steelers: Sony Michel, RB, Georgia

29. Jacksonville Jaguars: Hayden Hurst, TE, South Carolina

30. Minnesota Vikings: Will Hernandez, OG, UTEP

31. New England Patriots: James Daniels, C, Iowa

32. Philadelphia Eagles: Derrius Guice, RB, LSU

Most expect the Browns to use the top overall selection on a quarterback, with opinions a little more divided regarding whom Cleveland will ultimately choose. Bleacher Report's Mike Tanier and Doug Farrar were in agreement with Mayock, while Chris Simms had the Browns taking Wyoming Cowboys passer Josh Allen.

The Ringer's Riley McAtee argued Cleveland's final decision would be something of a litmus test for the front office.

The previous regime, which emphasized a more analytical approach, likely would've been swayed by the number of advanced metrics that are less than flattering toward Allen. A more traditional general manager such as John Dorsey might be willing to overlook that, though, in favor of Allen's frame (6'5", 237 lbs.) and overall potential.

That said, Barkley may also be a tempting option for the Browns. After running for 3,843 yards and 43 touchdowns in three years at Penn State, he has the look of a perennial Pro Bowler in the backfield.

As much as Cleveland is starved for a quarterback, taking a running back would make sense for a franchise that has had 13 different leading rushers since 1999.

Mayock had Allen as the third quarterback off the board, with the Buffalo Bills trading up to No. 6 in order to get him. Although the Bills signed AJ McCarron, going with a QB makes sense for Buffalo after the team traded Tyrod Taylor.

Whether or not the Bills ultimately go with Allen, he has already made it clear he'd be ready for the challenge, per NFL Network's Andrew Siciliano:

Somewhat surprisingly, Mayock had UCLA Bruins quarterback Josh Rosen slipping all the way down to the Arizona Cardinals at No. 15. Arizona would almost certainly be thrilled if that comes to pass, with the Cardinals looking for a long-term successor to the retired Carson Palmer.

Bleacher Report's Matt Miller ranked Rosen as the third-best QB in the 2018 draft class, behind Darnold and Allen. Miller compared Rosen to Jared Goff and wrote the Bruins star "is a clean prospect in terms of mechanics but has the biggest question marks when it comes to injury history and coachability."

Rosen's arrival would leave first-year head coach Steven Wilks with a difficult decision as he weighed possibly putting a rookie ahead of Sam Bradford and Mike Glennon in the depth chart.