Wallabies flanker David Pocock has confirmed he has played his last match for the Brumbies in Super Rugby and will now focus entirely on getting fit for the Rugby World Cup.

Key points: Pocock will move to Japan next season but will still be eligible for Wallabies selection under the Giteau rule

Pocock will move to Japan next season but will still be eligible for Wallabies selection under the Giteau rule The flanker has struggled with injury during his time with the Brumbies

The flanker has struggled with injury during his time with the Brumbies He has played 77 Tests for Australia and is focusing on his fitness for the upcoming Rugby World Cup

The 31-year-old loose forward, who is struggling with a long-term calf injury and has played only three matches for the Brumbies this season, said he would not seek another Rugby Australia contract and instead play in Japan's Top League next year.

He said finishing his time in Canberra injured on the sidelines had soured his Super Rugby farewell but he was thankful for his stint with the Brumbies.

"Personally [I'm] disappointed I guess," Pocock told a media conference in Canberra.

"Reflecting on my time in Canberra, [I'm] very grateful for the opportunities I have had here. Canberra's certainly home.

"I've made so many great friends at the Brumbies and outside rugby as well."

David Pocock has confirmed he will leave the Brumbies and Super Rugby. ( ABC News: Michael Black )

Pocock said he was dedicated to proving his fitness and earning selection for the Rugby World Cup, which begins in September.

"To pull on the Wallabies jersey again is obviously my goal," he said.

"It's a huge honour and something that I love doing, so I'll be doing everything I can to get myself right and get into the best shape I can."

The Zimbabwe-born Pocock, regarded as one of the best openside flankers in the world, joined the Brumbies ahead of 2013 but his first two seasons in Canberra were cut short because of long-term knee injuries.

Pocock had two seasons with the Brumbies cut short because of ACL injuries. ( AAP: Lukas Coch )

After returning from a sabbatical designed to extend his career last year, Pocock was also sidelined with a neck injury caused by opposing players twisting his head to try and nullify his effectiveness at the breakdown.

His time at the Brumbies may not have been marked by team success on the field, but he was widely praised for taking a stand against homophobia when he called out Waratahs opponent Jacques Potgieter for making a slur during match in 2015.

Pocock still available for Wallabies

This year's World Cup in Japan will be Pocock's third for the Wallabies should he be selected after he helped them make the semi-final in 2011 and the final four years ago in England.

Pocock has already won 77 Test caps and will still be available for the Wallabies beyond 2019 under what is known as the Giteau rule.

The ruling, colloquially named after Pocock's former Wallabies teammate Matt Giteau, allows those who have played more than 60 Tests to play for Australia while contracted to clubs overseas.

Pocock has played almost 80 Tests for the Wallabies since 2008. ( AAP: Dave Hunt )

Pocock was a teenage phenomenon, emerging from the Brisbane school ranks to make his Super Rugby debut for the Western Force as an 18-year-old in 2006.

His star rose even further over the next seasons and he played his first Test for the Wallabies against New Zealand in Hong Kong in 2008.

Pocock has skippered the Wallabies during his international career but his captaincy opportunities had been curtailed because of his lengthy list of injuries.

He has been nominated for World Rugby's Player of the Year award on more than one occasion and has twice won the Wallabies' top individual honour, the John Eales Medal (2010, 2018).

Pocock will return to Japanese club side Panasonic Wild Knights next year, having previously played for the Top League giant.

Reuters/ABC