NEW YORK (AP) -- No surprise: Clowney is the Texans' man.

After two extra weeks of intrigue, Houston opened the NFL draft Thursday night by taking South Carolina defensive end Jadeveon Clowney. Rarely does a team not reveal the top overall choice until it is announced, and there was wide speculation the Texans had soured on Clowney, whose work ethic has been questioned.

(Scroll down for up to date list of picks)

Obviously, the Texans were convinced that a player considered a budding NFL star even when he was a freshman was the right guy for them.

Jadeveon Clowney, from South Carolina, walks on stage for a group photo with fellow draft prospects before the first round of the NFL football draft, Thursday, May 8, 2014, at Radio City Music Hall in New York. (AP Photo/Jason DeCrow) AP Photo/Jason DeCrow

After Commissioner Roger Goodell announced the pick, fans who filled Radio City Music Hall to capacity applauded Clowney as he held up his index finger, his eyes moist, a relieved look on his face. Just like the 30 prospects on hand, the fans were extra eager to see who would wind up where after the draft was pushed back from late April because the theater was unavailable.

Clowney, 21, brings size, speed and power to a lineup that already has 2012 NFL Defensive Player of the Year J.J. Watt. His diligence had been questioned after he slipped from 13 sacks to just three in 2013. Critics said he was protecting himself from injury in his junior year before declaring early for the draft.

Clowney is the first defensive player taken first overall since Houston selected another end, Mario Williams, in 2006. Williams now is with Buffalo.

Houston also made the top pick in its first season, 2002, taking quarterback David Carr. He never lived up to that billing; the Texans hope Clowney has more of an impact.

Tackle Greg Robinson, whose blocking helped high-powered Auburn make the national championship game last season, went second to St. Louis. The Rams owned the pick as the final payment for a 2012 trade with Washington that allowed the Redskins to draft quarterback Robert Griffin III.

St. Louis is concerned about the health of starting left tackle Jake Long, who is coming off knee surgery.

The first quarterback to go went to Jacksonville in the third slot, but it wasn't Johnny Football. Blake Bortles of Central Florida, whose stock shot up last season and in subsequent workouts, was taken by the Jaguars ahead of Texas A&M sensation Johnny Manziel, the 2012 Heisman Trophy winner.

At 6-5, 232, Bortles drew comparisons to Ben Roethlisberger because of his combination of size and mobility. Jacksonville missed the last time it took a QB in the first round, Blaine Gabbert in 2011. The Jaguars gave up on the inconsistent Gabbert, who struggled to read defenses and was benched for journeyman Chad Henne. Gabbert is now a backup in San Francisco.

Then came the first trade. Seeing a chance to grab playmaking receiver Sammy Watkins of Clemson, Buffalo swapped spots with Cleveland, also sending a first- and fourth-round selection next year to move up from ninth to fourth.

Texas A&M tackle Jake Matthews, the son of Hall of Fame offensive lineman Bruce Matthews, went to Atlanta with the sixth overall pick. The Falcons leaked so badly on the offensive line in 2013 as they plummeted from NFC South champion to 4-12 that Matt Ryan was sacked 44 times.

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Round 1 Draft Picks:

1. Houston: Jadeveon Clowney (DE) South Carolina

2. St. Louis: Greg Robinson (OT) Auburn

3. Jacksonville: Blake Bortles (QB) Central Florida

4. Buffalo: Sammy Watkins (WR) Clemson

5. Oakland Khalil Mack (OLB) Buffalo

6. Atlanta: Jake Matthews (OT) Texas A&M

7. Tampa Bay: Mike Evans (WR) Texas A&M

8. Cleveland: Justin Gilbert (CB) Oklahoma St.

9. Minnesota: Justin Barr (OLB) North Carolina

10. Detroit: Eric Ebron (TE) North Carolina

11. Tennessee: Taylor Lewan (OT) Michigan

12. New York Giants: Odell Beckham Jr. (WR) LSU

13. St. Louis: Aaron Donald (DT) Pittsburgh

14. Chicago: Kyle Fuller (CB) Va. Tech

15. Pittsburgh: Ryan Shazier (OLB) Ohio St.

16. Dallas: Zack Martin (OT) Notre Dame

17. Baltimore: C.J. Mosley (ILB) Alabama

18. New York Jets: Calvin Pryor (S) Louisville

19. Miami: Ja'Waun James (OT) Tennessee

20. New Orleans: Brandin Cooks (WR) Oregon St.

21. Green Bay: Ha Ha Clinton-Dix (S) Alabama

22. Cleveland: Johnny Manziel (QB) Texas A&M

23. Kansas City: Dee Ford (DE) Auburn

24. Cincinnati: Darqueze Dennard (CB) Mich St.

25. San Diego: Jason Verrett (CB) TCU

26. Philadelphia: Marcus Smith (DE) Louisville

27. Arizona: Deone Bucannon (S) Washington St.

28. Carolina: Kelvin Benjamin (WR) Florida St.

29. New England: Dominique Easley (DT) Florida

30. San Francisco: Jimmie Ward (S) N Illinois

31. Denver: Bradley Roby (CB) Ohio St.

32. Minnesota: Teddy Bridgewater (QB) Louisville