Once in a lifetime opportunity to whitewash Australia - Eddie Jones

England coach Eddie Jones has advised his men to not get carried away by the praise being showered on them and stay focused on the "once in a lifetime opportunity" to trounce the Wallabies with a 3-0 clean sweep in the series finale on Saturday in Sydney.

The Six Nations Grand Slam champions have already successfully retained the Cook Cup by winning the previous two Tests in Brisbane and Melbourne and are on the brink of creating history this weekend.

Jones, stuck to the winning team combination from Melbourne, except the involuntary change to bring in Northampton's Teimana Harrison in place of injured number seven James Haskell.

The Springboks were the last team to clean sweep the Wallabies 3-0 on Australian soil in 1971.

England, who were knocked-out of the 2015 World Cup by the Wallabies, now stand a tremendous opportunity for some fitting retribution by making their way into the history books on Saturday.

Jones believes a 3-0 triumph will be a momentous accomplishment for his men, especially coming in Australia, where it is tough to defeat the home side.

"It's a fantastic opportunity. It is a once in a lifetime opportunity to beat Australia 3-0," Jones told reporters Friday.

"If you look at sides that come to Australia and win, the only side that does that regularly is New Zealand. The other sides who come in generally get beaten.

"It's a tough place to win, so in winning the series and then if we win 3-0 that's a significant achievement for the team."

However, Jones has also advised a word of caution to his side to not get complacent and stay focused on the job at hand.

"When you've had a couple of wins praise can make you weak and we have to be careful that all the praise doesn't make us weak," he warned.

"If you become weak once, you can become weak twice and to be a champion team you can't be like that.

"Outside praise is dangerous for a team and they've been getting a lot of it, so we just have to be careful."

Jones preferred to not make too many changes to the side by giving a chance to his bench, he instead has fielded his best XV to finish the job they started in Brisbane.

"I've always been of the opinion you should always earn your cap and if players are fit and mentally right to play and they are the best players you pick them," he said.

"Just because we won the series 2-0 doesn't mean the fringe players deserve a cap, they have to work hard to beat the person in front of them."

Jones who has remained unbeaten since taking over the reins of the England side from Stuart Lancaster, is hopeful Haskell's replacement, Harrison will bring something new to the side.

"Teimana is a bit of a street-fighter. He doesn't mind throwing it around a bit and we're going to need that on Saturday. He's nice and competitive in that seven spot (openside flanker)," he said.

Captain and hooker, Dylan Hartley believes the Saturday's game is his side's biggest challenge and they are eager to finish the season with a deserving win.

"Harrison is a bit more of a ball-carrier than Haskell. So he will give us a bit more in that area."

"We've had the quarters and the semis and I think this is the biggest challenge on Saturday," Hartley said.

"I think mentally we know how we can play, there's always stuff to improve on and play a complete game, but mentally it's about getting up for this game and treating it like a final and finishing our season with a win."