Heyman: Nothing changes for Matildas

Australia forward Michelle Heyman insists nothing changes for the Matildas for their round-of-16 clash against Brazil at the Women's World Cup.

Alen Stajcic's team meet Brazil at the Moncton Stadium on Monday morning (AEST).

Despite their highly threatening opposition, the Matildas intend to continue doing what they have to get to this stage.

"We're just going to stick to our own game plan and just play the way that we always play," Heyman said.

"We're not going to change anything, change our style or change the way we do our football.

"It's pretty much we're going to go out there, play our game and see what happens."

Heyman has been restricted to two appearances off the bench after starting in the 3-1 loss to United States.

Kyah Simon starts ahead of Heyman, who is eager to get her spot back.

"We're all fighting for a spot on the team and congrats to Kyah to get her role over me. I'm trying my hardest to try and get it back," she said.

Heyman added: "We'd both rather be in the middle of the field so it's just whoever performs well gets to put on the jersey first I guess."

Matildas midfielder Tameka Butt also welcomed the challenge of facing a team ranked seventh, three spots higher than Australia.

"It's going to be a tough match, but we've made it out of the group of death supposedly," she said.

"To win the World Cup you've got to play the best teams in the world, Brazil's one of them and we're looking forward to doing the job."