Celtics' Allen has surgery on torn knee ligaments
The surgery was performed at New England Baptist Hospital by Celtics physician Brian McKeon, the team said in a statement.
Allen, who is out indefinitely, tore two ligaments in his knee when he landed awkwardly after an uncontested dunk in the final minutes of a loss to Indiana on Wednesday.
He is averaging 11.5 points, 3.8 rebounds and 1.48 steals in 33 games this season.
Copyright 2007 by The Associated Press
This story is from ESPN.com's automated news wire. Wire index