Kiper's final 2017 Big Board: Top 300 NFL draft prospects

It's draft week, and that means my final Big Board is here. It's much more than my top 25 prospects -- this one goes to 300. You also can check out my position rankings, which cover more than 750 prospects.

The prospects below should cover a high percentage of those drafted -- there are 253 total picks this year -- but it's important to remember that every team has a distinct ranking of its own, and you'll see a number of players drafted who don't make my top 300.

To that point, here's the usual reminder: This final Big Board is not a prediction of where players will be drafted, only where I have them ranked as prospects. So dig in here, and come back Thursday for my final mock draft of the season. Oh, and check out ESPN, ESPN2 and WatchESPN for our live coverage of the draft.

Note: Ohio State cornerback Gareon Conley has been accused by a woman of raping her in a Cleveland hotel earlier this month. He has not been arrested nor have charges been filed against him as Cleveland police investigate the allegations. He called the claim "completely false" in a statement sent to ESPN. But because of the uncertainty around Conley's status, I have moved him from No. 18 overall to No. 75. I'm not sure a team will draft him if there is no clarity regarding the allegation.

1. Myles Garrett, DE, Texas A&M

Previous rank: 1 | Watch highlights

Garrett is the top prospect in this draft, and I've had him atop my Big Board since early in the 2016 season. At the combine, he ran a ridiculous 4.64 40-yard dash and had a 41-inch vertical jump and 10-foot-8 broad jump, all at 6-foot-4, 272 pounds. Garrett had a frustrating 2016 season, hampered by a high ankle sprain he suffered in late September, and his 8.5 sacks were down from his freshman total of 11.5 and sophomore total of 12.5. But when Garrett is on, he's a brilliant, natural pass-rusher. The Browns should take him No. 1.

2. Jonathan Allen, DE, Alabama

Previous rank: 2 | Watch highlights

Allen was one of the top two or three defenders in the country the past two seasons. After having 12 sacks in 2015, he had 10.5 more in 2016, including one in Alabama's national title game loss. I wrote in October about Allen's performance against Texas A&M, in which he had a signature sack and returned a fumble for a touchdown. Defensive end, defensive tackle -- at 6-3, 286 pounds, Allen can play anywhere on the line, and in a 4-3 or 3-4 defense. Plus, coach Nick Saban loves him.

3. Jamal Adams, S, LSU

Previous rank: 7 | Watch highlights

Adams put up solid safety numbers at the combine, running a 4.56 40 with a vertical jump of 31½ inches at 6-0, 214. He was a huge part of LSU's defensive success the past few seasons, even if it doesn't show on the stat sheet; he had one interception, one sack and one forced fumble this past season. He has great bloodlines -- his dad, George Adams, was the No. 19 overall pick in the 1985 NFL draft. He is built for today's NFL as a versatile safety who can play in the box effectively, make tackles against the run and move to the edges and track slot receivers.

4. Solomon Thomas, DE, Stanford

Previous rank: 3 | Watch highlights

Thomas has steadily risen over the past year, and now he's a likely top-five pick. He put up solid numbers at the combine and showed off the explosion that I saw on tape. Thomas plays like a veteran, causing disruptions in both the running and passing games. He had eight sacks in 2016 while playing end, but at 6-3, 273 pounds, he could move inside and play tackle. The versatility is what stands out. And he has some speed -- he ran a 4.69 40, and check out this fumble return.

5. O.J. Howard, TE, Alabama

Previous rank: 6 | Watch highlights

Howard could be a top-five pick. He stood out at Senior Bowl practices and had a great combine, including a 4.51 40 at 6-6, 251 pounds. Howard wasn't a prolific pass-catcher at Alabama, including only 37 catches last season, but he has all the tools that scouts look for in an NFL tight end. He can stretch the deep middle of the field and become a more dynamic weapon. He could be a playmaker in the NFL. Three of his seven career touchdowns came in national title games.

6. Christian McCaffrey, RB, Stanford

Previous rank: 12 | Watch highlights

McCaffrey's 4.48 40 and 37½-inch vertical at the combine should eliminate any doubts about his athleticism. He's going to be a really good pro. The Stanford offense was built around him for the past two years. He runs, catches passes, blocks and returns kicks and punts. With 590 carries for 3,622 yards and 82 catches for 955 yards the past two seasons, he has shown that he can carry the load. McCaffrey (5-11, 202) has incredible balance and could be an every-down back in the NFL. And it helps that he played in a pro-style offense at Stanford. His father, Ed, had a long NFL career as a wide receiver, and his brother, Max, was a good receiver at Duke.

7. Leonard Fournette, RB, LSU

Previous rank: 10 | Watch highlights

A 4.51 40 is a great time for a 240-pound back, but Fournette's 28½-inch vertical turned some heads, and not in a good way. I still see plenty of explosion when I watch his games. He struggled with a gimpy ankle in 2016 and played in only seven games. Fournette has an incredible combination of speed and power that can make him look like a varsity player hanging with the JV. Mileage was a concern heading into last season, but that's not an issue now. He had a whopping 300 carries in 2015 -- for 1,953 yards and 22 touchdowns -- and only 129 in 2016.

8. Reuben Foster, ILB, Alabama

Previous rank: 4 | Watch highlights

Foster has not had a good pre-draft process. He was sent home from the combine in a bizarre incident, and he tested positive for a dilute urine sample. He could drop well below here on draft day, but since these are my rankings, I'm still leaving him in the top 10. Foster (6-0, 229) is a big-time inside linebacker who has the talent and college tape of a top-five pick. He runs sideline to sideline and is a complete player.

9. Marshon Lattimore, CB, Ohio State

Previous rank: 5 | Watch highlights

At the combine, Lattimore ran a 4.36 40 and had a 38½-inch vertical and 11-foot broad jump, all three of which ranked in the top 10 among defensive backs. He's an athletic phenom who doesn't have a ton of experience. Lattimore (6-0, 193) struggled with a hamstring injury during his first two years in Columbus (and it did tighten up on him at the combine). But he was fantastic as a first-year starter in 2016, standing out in a group of talented defenders and posting four interceptions, including a pick-six. The 2017 cornerback class could be special, and Lattimore is at the top.

10. Haason Reddick, OLB, Temple

Previous rank: 11 | Watch highlights

Reddick's stock has moved up as much as anybody's in this class. He was one of the combine MVPs, with a 4.52 40, 36½-inch vertical and 11-foot-1 broad jump, all of which ranked in the top three among defensive linemen. Some teams might see Reddick (6-1, 237) as an inside linebacker, but I think he also could play outside in a 3-4 or a 4-3. He'll get in the backfield -- he had 21.5 tackles for loss last season. There's a chance he gets picked before Foster and is the first linebacker off the board.