The Gazette provides a bit of information on the ankle situation.
"I don't know what happened; I just rolled my ankle," said the 21-year-old from Vancouver who fell to the court in pain. He received a medical timeout but, after consulting with a physiotherapist and a doctor, he retired.
"It's an old problem," Pospisil said. "I injured it in February and it's only in the last four weeks that it's been feeling good."
Fred Niemeyer, who is a national coach as well as Niemeyer's personal coach, said Pospisil has withdrawn from a challenger next week in Lexington but it was too early to tell how long Pospisil would be out of action.
"There's a tournament in Saskatoon the following week and then one in Vancouver," said Niemeyer. "He might be ready but first we'll get an MRI to see how badly he's hurt."