BOSTON - NOVEMBER 13: Rajon Rondo #9 of the Boston Celtics drives the lane against Marvin Williams #24 of the Atlanta Hawks on November 13, 2009 at the TD Garden in Boston, Massachusetts...

ATLANTA - OCTOBER 28: Mike Bibby #10, Josh Smith #5 and Marvin Williams #24 of the Atlanta Hawks against the Indiana Pacers at Philips Arena on October 28, 2009...

...21) goes to the net against Atlanta Hawks forward Maurice Evans (1) and Atlanta Hawks forward Marvin Williams, right, during the second quarter of an NBA basketball game at Philips Arena, Friday, Dec. 4...

New York Knicks guard Al Harrington (7) dunks as Atlanta Hawks forward Marvin Williams, left, looks on during the second quarter of an NBA basketball game at Philips Arena, Friday...

CLEVELAND - MAY 5: (L-R) Joe Johnson #2, Al Horford #15, Marvin Williams #24, Josh Smith #5 and Mike Bibby #10 of the Atlanta Hawks watch from the bench...

ATLANTA - FEBRUARY 7: Marvin Williams #24 of the Atlanta Hawks drives to the basket during the game against the Los Angeles...

...Notice: Copyright 2009 NBAE (Photo by Fernando Medina/NBAE via Getty Images) CHARLOTTE, NC - MARCH 6: Marvin Williams #24 of the Atlanta Hawks looks on against the Charlotte Bobcats during their game at Time...

1- SACRAMENTO, CA - FEBRUARY 18: Marvin Williams #24 of the Atlanta Hawks surveys the court against the Sacramento Kings during the game on...

1-SACRAMENTO, CA - FEBRUARY 18: Marvin Williams #24 of the Atlanta Hawks surveys the court against the Sacramento Kings during the game on...

Camp co-director Charlie McCormick greets Atlanta Hawks forward Marvin Williams as he arrives for the 2008 camp. This year's NBA guest player will be Indiana...

ATLANTA - MAY 9: LeBron James #23 of the Cleveland Cavaliers drives to the basket against Marvin Williams #24 of the Atlanta Hawks in Game Three of the Eastern Conference Semifinals during the 2009...

Atlanta Hawks' Marvin Williams, left, and Joe Johnson watch the final seconds of the NBA Eastern Conference first-round NBA...

CHARLOTTE, NC - MARCH 6: Marvin Williams #24 of the Atlanta Hawks looks on against the Charlotte Bobcats during their game at Time...

Villanova's Randy Foye (2) shoots over North Carolina's Marvin Williams in the first half of the NCAA East Regional at the Carrier Dome in Syracuse, N...

WASHINGTON - MARCH 2: Marvin Williams #24 of the Atlanta Hawks shoots against Dominic McGuire #5 of the Washington Wizards at the...