From a broader squad of 24 submitted to FIBA before the qualifiers, the Boomers have brought Walker into the team for their first game on home soil since the Farewell Series prior to the 2016 Rio Olympics.
A team mate of Brandt's at the Perth Wildcats, Walker is averaging 10.7 points, five rebounds and two assists per game in the 2017/18 season.
He will make the trip over from Perth in time to join his national team mates for their final training session on Monday.
The Boomers head into the second game of the first window of their FIBA World Cup qualifiers full of confidence after taking care of Chinese Taipei in the opening game on Friday night, 104-66.
Japan will be keen for redemption after a loss at home to the Philippines two days ago but will have to overcome a 16-point loss to Australia in their most recent meeting at the 2017 FIBA Asia Cup.
Purchase your tickets for the game in Adelaide on Monday night from 7pm.
The Australian Boomers team for the FIBA World Cup qualifier against Japan on November 27 in Adelaide:
|Jason Cadee||Sydney Kings|
|Mitch Creek||Adelaide 36ers|
|Cameron Gliddon||Cairns Taipans|
|Chris Goulding||Melbourne United|
|Matt Hodgson||Adelaide 36ers|
|Nick Kay||Illawarra Hawks|
|Daniel Kickert||Brisbane Bullets|
|Damian Martin||Perth Wildcats|
|Mitch McCarron||Cairns Taipans|
|Brad Newley||Sydney Kings|
|Nathan Sobey||Adelaide 36ers|
|Lucas Walker||Perth Wildcats|
2017 FIBA World Cup Qualifier:
Adelaide, South Australia
Titanium Security Arena
27 November 2017 at 7.00 pm
Australian Boomers v Japan