Mitchell understands just how dangerous the reigning champions can be and will be taking every precaution leading into Friday night's clash at Members Equity Stadium.
"I don't think they've had the best of starts but they got back on track last week," Mitchell said. "You underestimate them at your peril."
Despite the Glory notching up their first win of the season against Newcastle Jets on Sunday, Mitchell is not getting too carried away.
"There were signs of improvement in the performance," he added. "There were a lot of passages that were good, some that were not so good and some that were bad."
Kick-off is at 8:00pm local time (10:00pm AEST).