“He wasn’t moving well in practice [Friday],” Rivers said in announcing his absence from the lineup Saturday night. Rivers did not immediately announce the nature of the injury, deferring to head trainer Ed Lacerte.
Lacerte and the Celtics later officially announced the diagnosis of adductor (groin) strain in his left leg.
Jeff Green , as he did for Paul Pierce  on Tuesday in Charlotte, takes Garnett’s place in the lineup. The Celtics will go very small in the lineup, with Brandon Bass  representing their biggest player among the starting five.
For more, visit the Celtics team page at weei.com/celtics .