Great Britain hockey goalkeeper James Fair believes they have to go out and attack Australia on Saturday otherwise they will invite trouble onto themselves.
Both teams have seven points and occupy the top two places in Pool A but the Kookaburras' goal difference is five better than the hosts after scoring 13 in three matches.
The world number ones and gold medal favourites have yet to hit top gear and were held to a surprise draw by Argentina last time out.
Fair, who has yet to keep a clean sheet in three matches, insists there is no point in GB curbing their attacking style against the Aussies.
"It's quite a simple thing really: you have to stop them scoring and take your chances," the Cannock goalkeeper told Press Association Sport.
"The lads have been defending pretty well and limiting chances to a minimum - South Africa probably scored two of their three opportunities (in GB's 2-2 draw earlier in the week).
"Argentina didn't have that many chances (in GB's 4-1 win) and Pakistan (also 4-1) didn't have many open play shots.
"We are defending well, getting in the tough tackles, and we will have to do that tomorrow because defending is key.
"I'll probably have to make a few saves and that's how you beat the Aussies.
"But we've got to keep on going forward, we have to play our attacking game against Australia because if you keep defending all the game you are going to let a lot of goals in at some point."
Fair was a minute away from keeping his first clean sheet against Pakistan when penalty corner specialist Sohail Abbas breached his defences with a set-piece.
It annoyed the 31-year-old goalkeeper but he is looking on the bright side.
"It would have been great to keep a clean sheet but maybe I'm saving them for another time," he added.
"It would be nice to pull one out but as long as we score more goals than the opposition that's fine - the good thing is we are creating chances.
"If we keep on doing that throughout the tournament we will win more than we lose."
Australia coach Ric Charlesworth insists their surprise draw will have no bearing on the clash against the hosts.
"The GB game was always going to be very critical for us so as far as I'm concerned the draw against Argentina has made no difference," he said.
"We have to play well to get to the end of this tournament in the main games and that has always been our main aim."