NCAA Bracket 2011: Derrick Williams and the Top 10 Big Men Left in the Sweet 16

Without an inside presence on both sides of the ball, no teams left in the Sweet 16 will advance any further.

Arizona forward Derrick Williams showed why size is so important in the NCAA tournament, as he dismantled Duke on Thursday night.

Other star big men still left in the tournament include Kansas' Marcus Morris and Ohio State's Jared Sullinger.

Which other powers in the paint made the cut to be "the best of the best?" Let's take a look...

10. Alex Oriakhi (F/C, Connecticut)

Nick Laham/Getty Images

WASHINGTON - MARCH 17: Alex Oriakhi #34 of the Connecticut Huskies celebrates against the Bucknell Bison during the second round of the 2011 NCAA men's basketball tournament at the Verizon Center on March 17, 2011 in Washington, DC. (Photo by Nick Laham

His stats aren't the greatest at 10 points and 8.5 boards per game, but Oriakhi is a key defender for the Huskies.

He averages 1.6 blocks per game, and although his offense is inconsistent, Oriakhi makes up for it on defense.

Oriakhi won't climb any higher on this list, but only because he has a lot of progressing to do; he's only a sophomore.

9. Justin Harper (F, Richmond)

Doug Pensinger/Getty Images

DENVER, CO - MARCH 19: Justin Harper #32 of the Richmond Spiders dunks the ball against Ty Proffitt #13 of the Morehead State Eagles during the third round of the 2011 NCAA men's basketball tournament at Pepsi Center on March 19, 2011 in Denver, Colorado

Harper is Richmond's best player and he's carried them to the Sweet 16.

In the 2010-2011 regular season, Harper shot 53.5 percent from the field and 45.2 percent from deep. At 6'10", Harper can score from anywhere, but he grabs 6.9 rebounds a game, too.

Harper will have a very difficult matchup against one of the Morris twins and Kansas.

8. Matt Howard (F, Butler)

Rob Carr/Getty Images

WASHINGTON - MARCH 19: Matt Howard #54 of the Butler Bulldogs puts up a shot against Gary McGhee #52 of the Pittsburgh Panthers during the third round of the 2011 NCAA men's basketball tournament at Verizon Center on March 19, 2011 in Washington, DC. But

Even with the absence of Gordon Hayward, Matt Howard has shined for Butler this season.

Howard raised his points average by 5.2 per game compared to last season and his rebounds by 2.6.

He can shoot from the outside as well, at around 44 percent. Howard made a game-winning shot against Old Dominion in the first round of the tournament, too.

He may seem undersized, but Howard's been the motor for this resilient Butler squad over the past two seasons.

7. John Henson (F, North Carolina)

Kevin C. Cox/Getty Images

CHARLOTTE, NC - MARCH 20: John Henson #31 of the North Carolina Tar Heels goes up to dunk the ball while taking on the Michigan Wolverines during the third round of the 2011 NCAA men's basketball tournament at Time Warner Cable Arena on March 20, 2011 in

Without Henson's solid defense inside, North Carolina wouldn't have made its amazing comeback this season, eventually becoming a No. 2 seed.

Henson averages a double-double (11.9 points, 10.1 rebounds) a night and an amazing 3.2 blocks.

He's lanky, but being only a sophomore, Henson will add some mass. Henson has a huge wingspan and locks down the paint for an otherwise suspect defense.

6. Markieff Morris (F, Kansas)

Tom Pennington/Getty Images

TULSA, OK - MARCH 20: Markieff Morris #21 of the Kansas Jayhawks celebrates after a play against the Illinois Fighting Illini during the third round of the 2011 NCAA men's basketball tournament at BOK Center on March 20, 2011 in Tulsa, Oklahoma. (Photo

Markieff Morris and his brother Marcus Morris anchor the strongest frontcourt in the country for Kansas.

Markieff is the best defender on the team, averaging 8.3 rebounds, 1.1 blocks and almost a steal per game.

He can shoot from beyond the arc as well at 42.1 percent. Markieff and his brother share the spotlight, and he'll soon be an All-American.

5. Chandler Parsons (F, Florida)

Kevin C. Cox/Getty Images

NEW ORLEANS, LA - MARCH 24: Chandler Parsons #25 of the Florida Gators celebrates during their 84 to 74 win over the Brigham Young Cougars in the Southeast regional of the 2011 NCAA men's basketball tournament at New Orleans Arena on March 24, 2011 in Ne

Parsons was recently given the SEC Player of the Year Award. As a versatile big man, Parsons shoots 48.7 percent from the floor and has a solid 1.68 assist/turnover ratio.

He's the Everyman for a very deep Florida frontcourt, and he nearly recorded a triple-double in the first round of this year's tournament. Parsons has risen to the occasion since the tournament began, and although his field-goal percentage doesn't awe anyone, he's played very well.

Parsons will continue to be effective.

4. Terrence Jones (F, Kentucky)

Mike Ehrmann/Getty Images

TAMPA, FL - MARCH 19: Terrence Jones #3 of the Kentucky Wildcats gets set to shoot a free throw attempt against the West Virginia Mountaineers during the third round of the 2011 NCAA men's basketball tournament at St. Pete Times Forum on March 19, 2011 i

Jones doesn't get enough recognition, but he had a monster season for Kentucky.

The Wildcats are undersized, and even though Jones is only 6'8", he's truly a complete player. At 16.1 PPG, 8.7 RPG, 1.9 BPG and 1.1 SPG, Jones is terrific.

He's been extremely efficient in both of Kentucky's 2011 NCAA tournament wins, making over 50 percent of the shots he's taken. Jones also recorded a double-double against West Virginia.

3. Marcus Morris (F, Kansas)

Ronald Martinez/Getty Images

TULSA, OK - MARCH 20: Marcus Morris #22 of the Kansas Jayhawks reacts to a play against the Illinois Fighting Illini during the third round of the 2011 NCAA men's basketball tournament at BOK Center on March 20, 2011 in Tulsa, Oklahoma. (Photo by Ronald

Unlike his brother Markieff, Marcus Morris is an All-American.

To go along with his 17.3 points and 7.6 rebounds per game, Morris shoots an amazing 58.7 percent.

Morris hasn't scored less than 16 points in each of his last six games and continues to rise. Kansas plays Richmond in the Sweet 16 and will likely advance to the Elite Eight because of him.

Morris will be a fantastic NBA player one day.

2. Jared Sullinger (F, Ohio State)

Andy Lyons/Getty Images

CLEVELAND, OH - MARCH 20: Jared Sullinger #0 of the Ohio State Buckeyes looks on during the game against the George Mason Patriots during the third of the 2011 NCAA men's basketball tournament at Quicken Loans Arena on March 20, 2011 in Cleveland, Ohio.

Sullinger is one of four Naismith Player of the Year finalists, and this freshman has been incredible in 2010-2011.

Sullinger averaged a double-double this season (17.1 points, 10 rebounds) and has continued to impress his peers in both of Ohio State's blowout wins during the tournament.

He will likely be one of the first two selections in the 2011 NBA Draft if he leaves school. Sullinger has shot 12-of-17 in the first two games of the tournament and will face a tough Kentucky team while being guarded by Terrence Jones in the Sweet 16.

1. Derrick Williams (F, Arizona)

Ronald Martinez/Getty Images

TULSA, OK - MARCH 20: Derrick Williams #23 of the Arizona Wildcats celebrates after defeating the Texas Longhorns 70-69 in the third round of the 2011 NCAA men's basketball tournament at BOK Center on March 20, 2011 in Tulsa, Oklahoma. (Photo by Ronald

Williams left the college basketball world in awe after his breathtaking performance in the Sweet 16 against Duke. He scored 35 points, grabbed 13 rebounds and shot five-of-six from three-point range.

This kid leapfrogged Sullinger after showcasing his leaping ability and amazing speed.

He averaged 19.5 points and 8.4 rebounds while shooting an amazing 60.3 percent from deep this season. Williams' draft stock will shoot up after this tournament and he can now be considered as a top-pick candidate in the 2011 NBA Draft.

He's unbelievably athletic, and with some defensive touch-ups, he'll be a great NBA player.