Shaquille O'Neal, here going for a rebound against the Cavaliers' Anthony Parker, played 37 games last regular season for the Boston Celtics, the sixth team of his career, before he announced his retirement via Twitter on June 1, 2011.
Jolly Green Giant
Shaquille O'Neal speaks to reporters at a news conference announcing his signing with the Boston Celtics on Aug. 10, 2010.
Joker and the King
Shaquille O'Neal, left, and LeBron James pose for a portrait during the Cleveland Cavaliers' media day on Oct. 3, 2009. O'Neal was traded to Cleveland by the Phoenix Suns during the offseason.
Co-MVPs Shaquille O'Neal and Kobe Bryant of the Western Conference hold up the trophy after their team defeated the Eastern Conference in the 58th NBA All-Star Game at U.S. Airways Center on Feb. 15, 2009 in Phoenix.
Shaq dances with the Jabbawockeez as he is introduced before the start of the 58th NBA All-Star Game at U.S. Airways Center on Feb. 15, 2009, in Phoenix.
Shaq the tire changer
Shaq changes a tire on the No. 2 U.S. Air Force Luszo Dragon Racing car driven by Raphael Matos before the IRL IndyCar Series Bombardier Learjet 550k on June 6, 2009 at Texas Motor Speedway in Fort Worth, Texas.
Shaq prepares for the Belmont
Shaq finishes a TV interview while dressed as a jockey before the start of the 140th running of the Belmont Stakes at Belmont Park on June 7, 2008, in Elmont, N.Y.
Workers paint a statue of Shaquille O'Neal in the Li Ning Physical Training Park on March 25, 2008, before the Olympic Games in Beijing, China.
Typical day in China
Shaq visits the Great Wall on Aug. 15, 2006, in Beijing, China. He was in China to promote a Chinese sports brand.
Tim Duncan and Shaq wait for a rebound during Game 3 of the Western Conference quarterfinals at the at U.S. Airways Center on April 25, 2008.
Shaq's flaw at the line
Shaq, known throughout his career as a poor free-throw shooter, shoots a free throw against the San Antonio Spurs during Game 3 of the Western Conference quarterfinals at the U.S. Airways Center on April 25, 2008.
Living in the Valley of the Sun
Shaquille O'Neal and Steve Nash wait on the sideline during a game against the Boston Celtics at U.S. Airways Center on Feb. 22, 2008, in Phoenix.
The original Superman
Shaquille O'Neal arrives at the Warner Bros. premiere of "Superman Returns" held at the Mann Village Theater on June 21, 2006, in Westwood, Calif.
Shaq holds the Larry O'Brien trophy after the Heat defeated the Dallas Mavericks in Game 6 of the NBA finals on June 20, 2006, at American Airlines Center in Dallas.
Making T.O. look small
Shaq and NFL wide receiver Terrell Owens watch the Footlocker Three-Point Shootout competition during NBA All-Star Weekend at the Toyota Center on Feb. 18, 2006 in Houston.
Shaquille O'Neal shows his back to Kobe Bryant on Dec. 25, 2005 at the American Airlines Arena in Miami.
Dwyane Wade and Shaquille stand on the court during a game against the New Jersey Nets at American Airlines Arena on Nov. 3, 2006 in Miami.
Welcome to South Beach
Shaq talks during a press conference at the American Airlines Arena on July 20, 2004 in Miami as he's introduced as a new member of the Heat.
Shaquille O'Neal, Gary Payton and Kobe Bryant look on from the bench in the fourth quarter of Game 5 of the NBA finals against the Detroit Pistons on June 15, 2004 at The Palace of Auburn Hills. Soon after, O'Neal would leave Kobe and the Lakers for Miami.
Method Man and Shaquille O'Neal at "Shaqtacular VIII" at Barker Hanger on Sept. 20, 2003 in Santa Monica, Calif.
Los Angeles Port Police Officer Shaquille O'Neal puts on a jacket that was gifted to him by fellow officers at the Conference of the International Association of Airport and Seaport Police Gala on May 29, 2003 in Los Angeles.
Three times a charm
Shaquille O'Neal and Kobe Bryant hold up three fingers to indicated the three consecutive NBA titles the Lakers had won as they are honored on a stage at City Hall in Los Angeles on June 14, 2002.
Shaquille O'Neal holds the MVP trophy, right, and the Larry O'Brian Championship trophy after the Los Angeles Lakers beat the Philadelphia 76ers in five games for the NBA title on June 15, 2001.
First time's a happy time
Kobe Bryant holds the Larry O'Brian trophy as teammate Shaquille O'Neal holds the MVP trophy after winning the NBA title against Indiana Pacers on June 19, 2000.
Welcome to L.A.
Center Shaquille O''Neal of the Los Angeles Lakers and general manager Jerry West pose at a press conference on July 18, 1996 as the Lakers acquired Shaq from the Orlando Magic.
"Dream Team III" members Scottie Pippen, Shaquille O'Neal and Reggie Miller cheer as they walk on the track at the Olympic Stadium on July 19, 1996 in Atlanta.
Speaking to His Airness
Shaquille O'Neal and Bulls guard Michael Jordan talk during a game at the United Center in Chicago, Ill., on March 24, 1995.
Shaquille O'Neal during plays for Team USA against Russia in the 1994 World Championships at Skydome in Toronto on Aug. 12, 1994.
Shaquille O'Neal played three season at LSU before being drafted by the Orlando Magic with the No. 1 overall pick in the 1992 NBA draft.
Shaquille O''Neal of the Cole High School Cougars talks to the media after a game.