On Oct. 22, the Celtics will raise Banner 18 to the TD Garden rafters. An integral member of their previous title team in 2008 will also see his number raised high above the hardwood.
However, while Tony Allen helped Boston best the Lakers in the 2008 NBA Finals, it was with the Grizzlies that he blossomed into one of the league’s most formidable defenders.
In Memphis, Allen became a six-time All-Defensive selection, including three as a member of the First Team…