Cahill was in London this week on international duty for Australia.
"He is doing OK," Petke said of Cahill, "He had a long flight. He flew straight to Vancouver instead of having a stop over in New York and then jumping on another plane.
"He's in Vancouver waiting us and he feels good, so that's going to be a decision that we make some time obviously before the game, but the sooner the better [to determine] what his role is going to be. He's available and he's feeling pretty good from what I understand."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball