Boomers captain and NBA veteran Patty Mills could be on the move next season after reportedly declining his $6.2 million ($A9m) player option for next season.
The move makes the Brooklyn Nets’ Australian guard a free agent one day before players can begin negotiating deals with clubs.
Mills made a career-best 227 three-pointers last season for the Nets, averaging 11.4 points in 81 games (48 starts).
Mills still could choose to return to Brooklyn.
The 33-year-old Tokyo Olympics bronze medallist spent 10 seasons with the San Antonio Spurs prior to last season. He began his NBA career by playing two seasons with the Portland Trail Blazers.
Mills has career averages of 9.2 points, 2.3 assists and 1.7 rebounds in 820 games (105 starts). He has knocked down 1,447 three-pointers at 38.9 per cent.
Long known for his character and ability to be a good teammate, Mills won the NBA Sportsmanship Award after last season.
Mills entered the league as a second-round pick in the 2009 draft by Portland after being a college star at Saint Mary’s.