Langer appointed Australia coach

Justin Langer has been appointed head coach of Australia's Test, one-day international and Twenty20 international teams.

Cricket Australia has announced Justin Langer's appointment as national team head coach in all three formats of the game, succeeding Darren Lehmann.

According to a statement released by Cricket Australia on Thursday, the 47-year-old former Test star has agreed a four-year contract and will begin his new role on May 22.

Langer has coached Western Australia and Perth Scorchers since 2012, winning the Big Bash League three times and the One-Day Cup twice.

The former opening batsman had worked with Australia's national team as an assistant coach from 2009 until his appointment by Western Australia. 

He also served as interim Australia head coach during an ODI Tri-Series in the Caribbean in 2016 and a Twenty20 international series at home to Sri Lanka last year.

"It is humbling to be appointed as coach of the Australian men's cricket team," Langer said in a statement. 

"I am very excited about the scope I now have to coach the country that supported me so much in my cricketing career."

Langer, whose initial length of contract encompasses two Ashes series and the 2019 World Cup, will be tasked with rehabilitating the team's reputation in the wake of the ball-tampering scandal that occurred during the Test series with South Africa in March. 

The fallout from the incident has seen former captain Steve Smith and former vice-captain David Warner banned for one year and Cameron Bancroft suspended for nine months.

Tim Paine assumed the captaincy and Lehmann left his role ahead of schedule, although the 48-year-old had already been due to step down at the end of next year, having held the position since June 2013. 

"There will be some significant challenges ahead for our group, but there is a wealth of talent in Australian cricket that I know will do us all proud," said Langer, who will also take a role on the Rick McCosker player review panel, which has been established to address the cultural problems that led to the scandal. 

"I'm thoroughly looking forward to working with all players, as we strive for a successful men's team across all formats, with the support and respect of the Australian public."