Furcal suffered the injury when he grounded into a double play to end the seventh inning of the Dodgers' 4-0 Game 1 loss. He finished out the game.
But between games, Torre said Furcal would not start the second game and was "doubtful" for the series finale Wednesday. The Dodgers don't have a true backup shortstop. Jamey Carroll started at shortstop in the second game.
"He didn't feel he tore it, it just felt tight," said Torre
Furcal's injury adds to a recent wave of ailments that have recently landed left fielder Manny Ramirez (right calf), Opening Day starting pitcher Vicente Padilla (radial nerve), reliever Jeff Weaver (stiff back) and catcher Brad Ausmus (back surgery) on the disabled list in the past 2 1/2 weeks.
In addition, right fielder Andre Ethier has been playing with a sprained left ankle since the first series of the season.