Australia moved their World Cup training session on Tuesday back to their old ground in Johannesburg after complaining about the Ruimsig pitch where they are officially based.
The team received permission from FIFA to move back to the school grounds that they used for the first 10 days of training, and will work-out there on Tuesday and Thursday.
Australia play their first match against Germany on June 13 in Durban.
"They are trying to make it good, but it is not good," Verbeek told reporters before Sunday's session, adding that the state of the pitch could lead to injuries.
The Ruimsig stadium was used ahead of the Confederations Cup a year ago and was seen then as one of the best training facilities.
Australia, playing in their third World Cup, also face Ghana (June 19) and Serbia (June 23) in Group D.
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