The last thing the Celtics  needed was another injury to a player who is already filling in for an injured starter. Tony Allen  said he hyperextended his left shoulder when he collided with Marcus Banks, who was setting a screen as Allen was going for a steal on Hedo Turkoglu  late in the fourth quarter of Boston’s win over Toronto at TD Garden on Saturday night.
“It hyperextended when I tried to get the steal and Marcus Banks came in with the screen,” Allen said . “I don’t think he meant anything bad by it.”
Allen, who started in place of Rajon Rondo , said he will come in and get stimulation treatment on the shoulder on Sunday and should be ready to go for practice on Monday in Waltham.