Victoria Police are investigating the incident and officers were called to the scene late on Saturday night.
It said no arrests had been made and believed 150-200 Victory fans were at the stadium.
Victory issued a statement Saturday night saying it was appalled and apologized to those injured and to anyone who “witnessed this appalling act”.
Melbourne Victory managing director Caroline Carnegie and Football Australia chief executive James Johnson are expected to address the media on Sunday morning.
The Australian professional footballer praised the courage of the players and officials who helped Glover off the field and said the fans involved should face the toughest possible sanctions.
“The PFA have met with the players involved in tonight’s game and will continue to ensure they have the full support and resources of the PFA,” it said.
“We thank the players, club staff and referees for their courage in helping each other in situations where no one should have contact.”
Western United and Western Sydney Wanderers are scheduled to play the A-League men’s game at AAMI Park at 3pm AET, followed by the women’s match between Melbourne Victory and Newcastle Jets at 6.15pm AET.