Cook County state's attorney spokesman Tom Stanton said the indictment, handed up by a grand jury, was read to Allen during a hearing Wednesday. Allen did not enter a plea.
Allen, who was charged last month with aggravated battery and released on a US$150,000 bond, is scheduled to return to court Dec. 6 for arraignment, Stanton said.
Aggravated battery carries a maximum sentence of five years in prison.
Allen's attorney, Michael Zaslavsky, did not immediately return a message seeking comment.
Allen is accused of being involved in an early morning fight at a diner south of the downtown business district. According to police, he punched another man in the face, breaking the man's left eye socket.
Another man was shot in the left arm and left side, but police spokesman Pat Camden said Allen is not suspected in the shooting.
Allen was drafted 25th overall in the 2004 National Basketball Association draft out of Oklahoma State University. He started 34 games as a rookie, averaging 6.4 points and 2.9 rebounds.
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