Australia still have "unfinished business" to address despite retaining Ashes, says Justin Langer

The Australia head coach admits that while the visitors enjoyed their Old Trafford celebrations after going 2-1 up in the series, his side still have work to do

Australia head coach Justin Langer insists his side still need to address "unfinished business" despite their victory at Old Trafford on Sunday.

The visitors' 185-run victory in Manchester confirmed that they would retain the Ashes and remain in with a chance of winning a Test series on English soil for the first time in 2001.

While Langer admits that the Australia enjoyed their celebrations after the Old Trafford victory, which put them 2-1 up in the five-match series ahead of the final game at the Oval, he acknowledges that his side still have work to do.

"I think some of my great memories of playing Test cricket were celebrating a victory. If you can't celebrate after a win, it would be a pretty boring game wouldn't it?," he said.

"The boys are up and about, there is great energy in the group. I have said throughout the series there has been a lot of laughter in the group, great camaraderie, so hopefully that continues.

"It certainly gets heightened when you have a good victory. There is a good feeling in the group, they know there is still unfinished business and we are looking forward to this last Test match.

"We've said the whole time we're here to win the Ashes, so whilst the other day was a great experience, we have still got some business to do."

^{Australia have work to do despite retaining the Ashes, insists Langer}

Australia's concerns have not diminished despite retaining the Ashes, with Nathan Lyon receiving a cut on his spinning finger at Old Trafford and opener David Warner horribly out of form.

However, Langer expects Lyon to pull through after taking 2-51 in the second innings in Manchester and maintains that Warner's lean run will test the left-hander's character.

"He'll [Lyon] be fine. You don't play 90 Tests or whatever he has played now, he's pretty tough. His finger is a bit sore, but he'll be fine.

"Davey [Warner] hasn't had a great series, there's no secrets about that, but he's also a great player. I've said throughout the whole series if Davey has one good series he'll help us win the Ashes.

"He probably hasn't been through this lean run before so it's going to be a good test of his character. We know what a great player he is, he's had a huge World Cup, he had a huge IPL albeit with a white ball.

"He's a world class player, a match-winner, he's been brilliant around the group since he's been back."

Steve Smith joined Warner in making a return to the Australia side for the World Cup and the Ashes, and both have faced severe jeering from English crowds around the country.

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However, the pressure was cranked up on former captain Smith this week after he was seen celebrating on the Old Trafford pitch wearing glasses in an attempt to mock Jack Leach.

Langer however insisted that the Smith's actions were directed at former opening batsman Chris Rogers and that there was no ill-intentioned mockery of the England spinner.

"Experience tells me when you're doing well people try and pick holes in you. That's ok, that's life.

"I was there, I know the truth, they were talking about Chris Rogers, who was here four years ago. That is actually the truth of it. Chris Rogers is a great mate of the squad, that's what it was about.

"People can make of it what they like. We can't do anything of what people make of it."