The sentencing of a Montreal man who brutally attacked a woman in a metro station has been delayed for a number of months.

The Montreal provincial courthouse was too busy to hold the scheduled sentencing hearing Wednesday for Peter Niedzielski, and it was eventually postponed, the Crown prosecutors' office said.

Niedzielski pleaded guilty to four assault charges in his 2005 violent attack on Marcia Langleib and several other people in the Snowdon metro station.

Langleib, 55, showed up in court Wednesday for Niedzielski's sentencing in what she described as a show of courage. "I'm upset," said the Montreal resident, who suffered brain damage and hasn't been able to work since the attack.

Niedzielski slammed Langleib's head into a wall during the incident, breaking several bones in her face and putting her in a coma for two months. Langleib said she cannot concentrate enough to read a book since the attack.

Sentencing arguments for Niedzielski are scheduled for April 17.