John and Ross Aloisi are hoping to become the first Australian brothers to coach a football team to the A-League championship.

John appointed his older brother as his assistant coach at the Brisbane Roar knowing he would not be afraid to tell him some home truths.

"I know that I can ask him a question and get … an honest answer and sometimes it's an answer that I don't want to hear," John said.

"But I'll go back and I'll reflect and I'll make the decision on what he tells me.

"I've worked with other coaches where they might be afraid to speak out.

"We grew up together, playing the game together, we know each other's good habits and bad habits.

"We know when we can talk to each other and have a serious chat and also when we have to back away a little bit."

Ross Aloisi saw his younger brother in a new light during the Roar's off-season ownership and financial issues.

John Aloisi and his brother Ross have robust discussions about football. ( Getty Images: Matt Roberts )

The club was facing legal action from suppliers and its old landlord, the Queensland Rugby Union, lodged court documents seeking to have the A-League club wound up.

"Not that I was shocked to see the way John works, I'm not talking about him being my brother, I'm talking about him being a football coach and manager," Ross said.

"He's turned the club around. You know when people didn't believe in us, when people thought the club was going downhill, he made all the big decisions and it's worked in our favour."

But John's dedication proved too much at times.

"We lived together before our families moved up to Brisbane so I took work home a little bit and sometimes it was a bit too much, that he'd go to bed early so I didn't have to talk about work," John said.

"But it was great to bounce ideas off my brother and make sure that I made the right decisions."

John Aloisi said he never stopped to think how fans or critics would view his decision to hire his brother.

"If I was worried about what people were going to say then I wouldn't have even coached any more, I would have stayed away," John said.

"They'll end up knowing and seeing that we'll get the results working together."

The mood at home reflects the score

Soccer is in the Aloisi brothers' blood, and it is hard to avoid the topic when their families come together.

"The weekend of a loss is not good, I can tell you that," John said

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"The weekend of a win its a little bit better but you're always looking for what you could have done better.

"Our families sometimes can get a little bit fed up with us talking about the game all the time or our team but that's been part of our lives ever since I can remember.

"My dad would be talking about football and then us, and whoever was there would be talking about the game."

Their loved ones shared their pain after Saturday's draw with the Victory, which cost the Roar the Premiers Plate.

"They could see what we were going through," Ross said.

"We got together with the families and had a bite to eat and actually spoke to them to say that you can't win every single game."

They are hoping to avoid a similar conversation after they face the Victory again in Friday's elimination final.