Facial cut sidelines Guerin for Game 5
Guerin was injured after a teammate's deflected shot hit him in Game 4 on Wednesday night, when the Red Wings won in overtime and tied the series.
Sharks coach Ron Wilson said he has "no idea" if Guerin will be ready to play Monday night in Game 6 at San Jose.
Guerin, acquired by San Jose just before the trade deadline, has struggled in the playoffs, going scoreless with two assists in nine games.
Copyright 2007 by The Associated Press
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