Blake Griffin will not defend his crown in the 2012 NBA Slam Dunk Competition, but there are some quality contestants looking to win the title.

Timberwolves rookie Derrick Williams will take on another former Arizona Wildcat star as Chase Budinger of the Rockets competes for the first time. They are joined by other first-time participants Paul George of the Indiana Pacers and Jeremy Evans of the Jazz.

Evans replaced Knicks' guard Iman Shumpert, who is injured.

The competition takes place at 8:30 Eastern time on Saturday, Feb. 25, at Amway Center in Orlando. TNT will have coverage of the contest.

The game can be seen online here: http://www.nba.com/nbatv/

Here are the past winners of the competition:

2011 - Blake Griffin, L.A. Clippers 2010 - Nate Robinson, New York 2009 - Nate Robinson, New York 2008 - Dwight Howard, Orlando 2007 - Gerald Green, Boston 2006 - Nate Robinson, New York 2005 - Josh Smith, Atlanta 2004 - Fred Jones, Indiana 2003 - Jason Richardson, Golden State 2002 - Jason Richardson, Golden State 2001 - Desmond Mason, Seattle 2000 - Vince Carter, Toronto 1997 - Kobe Bryant, L.A. Lakers 1996 - Brent Barry, L.A. Clippers 1995 - Harold Miner, Miami 1994 - Isaiah Rider, Minnesota 1993 - Harold Miner, Miami 1992 - Cedric Ceballos, Phoenix 1991 - Dee Brown, Boston 1990 - Dominique Wilkins, Atlanta 1989 - Kenny Walker, New York 1988 - Michael Jordan, Chicago 1987 - Michael Jordan, Chicago 1986 - Spud Webb, Atlanta 1985 - Dominique Wilkins, Atlanta 1984 - Larry Nance, Phoenix