Kentucky forward Willie Cauley-Stein (15) dunks as South Carolina forward Michael Carrera (right) looks on, Saturday, Feb. 14, 2015, in Lexington, Ky.

Kentucky guard Andrew Harrison (5) has his shot contested by South Carolina guard Shamiek Sheppard (left).

Virginia forward Darion Atkins (5) drives to the basket against Wake Forest forward Greg McClinton (11) in Charlottesville, Va., Saturday, Feb. 14, 2015.

Wake Forest forward Cornelius Hudson (25) takes a shot over Virginia guard Marial Shayok (4).

Gonzaga guard Kevin Pangos (4) shoots against Pepperdine guard Jeremy Major (3), Saturday, Feb. 14, 2015, in Spokane, Wash.

Pepperdine head coach Marty Wilson directs his team against Gonzaga. 

Duke forward Justise Winslow (right) shoots against Syracuse center Rakeem Christmas (left) in Syracuse, N.Y., Saturday, Feb. 14, 2015.

Syracuse forward Michael Gbinije (left) drives to the basket past Duke forward Amile Jefferson (right).

Wisconsin forward Nigel Hayes (10) shoots past Illinois forward Nnanna Egwu, Sunday, Feb. 15, 2015, in Madison, Wis.

Illinois center Maverick Morgan (right) shoots against Wisconsin forward Sam Dekker (center).

Villanova guard Darrun Hilliard II (4) hits the game-winning shot over Butler forward Andrew Chrabascz (45) in the final seconds in Indianapolis, Saturday, Feb. 14, 2015. 

Butler guard Alex Barlow (3) shoots over Villanova forward Kris Jenkins (2).

Arizona forward Rondae Hollis-Jefferson (23) shoots against Washington State guard DaVonte Lacy, Sunday, Feb. 15, 2015, in Pullman, Wash. 

Washington State guard Dexter Kernich-Drew (10) shoots against Arizona guard Elliott Pitts (24).

Kansas forward Perry Ellis dunks the ball against Baylor, Saturday, Feb. 14, 2015, in Lawrence, Kan.

Baylor guard Kenny Chery (1) shoots under pressure from Kansas forward Perry Ellis (34) and guard Brannen Greene (14).

NC State guard Anthony Barber (left) drives to the basket past the defense of Louisville center Chinanu Onuaku (32), Saturday, Feb. 14, 2015 in Louisville, Ky.

Louisville forward Mangok Mathiang (facing) blocks the shot of NC State forward Caleb Martin (14). 

Utah guard Delon Wright (55) slams home a basket in front of California guard Sam Singer (2), Sunday, Feb. 15, 2015 in Salt Lake City, Utah.

California guard Tyrone Wallace (3) tries for the basket in front of Utah center Dallin Bachynski (31).

North Carolina forward Brice Johnson (11) goes up for a dunk against Pittsburgh, Saturday, Feb. 14, 2015, in Pittsburgh.

Pittsburgh guard Cameron Wright (3) shoots over North Carolina guard Nate Britt (0).

Northern Iowa forward Seth Tuttle (10) shoots over Missouri State center Tyler McCullough (50) in Springfield, Mo., Sunday, Feb. 15, 2015.

Missouri State guard Shawn Roundtree (24) gathers the ball while covered by Northern Iowa forward Nate Buss (left) and guard Deon Mitchell (1).

Iowa State forward Jameel McKay (left) blocks a shot by West Virginia guard Tarik Phillip, Saturday, Feb. 14, 2015, in Ames, Iowa.

West Virginia forward Devin Williams (right) fights for a rebound with Iowa State guard Bryce Dejean-Jones (left). 

Kansas State guard Marcus Foster (2) makes the go-ahead basket over Oklahoma guard Isaiah Cousins (11) in Manhattan, Kan., Saturday, Feb. 14, 2015.

Oklahoma guard Buddy Hield (24) drives to the basket while covered by Kansas State guard Marcus Foster (back).

Maryland forward Michal Cekovshy (15) is fouled by Penn State forward Payton Banks (0), Saturday, Feb. 14, 2015, in State College, Pa.

Penn State guard D.J. Newbill (2) drives against Maryland guard Dez Wells (44).

VCU guard Jonathan Williams (10) shoots a layup between George Washington guard Kethan Savage (11) and forward John Kopriva (34) in Washington, Saturday, Feb. 14, 2015. 

George Washington guard Patricio Garino (right) drives against VCU guard Jordan Burgess (left). 

The TCU bench celebrates during the second half against Oklahoma State, Saturday, Feb. 14, 2015, in Fort Worth, Texas.

Oklahoma State forward Le'Bryan Nash (2) shoots a layup against TCU. 

Michigan State guard Denzel Valentine (right) and forward Branden Dawson (22) celebrate after clinching a win over Ohio State, Saturday, Feb. 14, 2015, in East Lansing, Mich.

Ohio State's Sam Thompson (12) goes up for a dunk against Michigan State.

Arkansas forward Bobby Portis (10) shoots over Ole Miss forward Sebastian Saiz (11) in Oxford, Miss., Saturday, Feb. 14, 2015.

Ole Miss forward M.J. Rhett (4) leaps for the dunk against Arkansas. 

SMU center Yanick Moreira (2) goes up for the dunk against UConn, Saturday, Feb. 14, 2015, in Dallas, Texas. 

UConn guard Ryan Boatright (11) shoots over SMU guard Ryan Manuel (1).