Antoine Walker announced his retirement on Saturday. The former Kentucky Wildcat played 12 NBA seasons, mostly for the Celtics and highlighted by his championship with the Heat in 2006. Walker had been attempting an NBA comeback with the Idaho Stampede of the NBA Development League this season and averaged 9.5 points and 5 rebounds in 25 minutes per game. (Jesse D Garrabrant/Getty Images)
BALLARD: Antoine Walker brings his shimmy to the Idaho Stampede
GALLERY: Iconic Photos of the Boston Celtics
