Bradley, 29, started 44 games for the Lakers before opting out of playing the NBA bubble in Orlando, citing family concerns.
Bradley was a key two-way player for L.A. in their run-up to the No. 1 seed in the Western Conference. He signed a two-year deal worth $9.77 million with a player option before the season.
In a decade in the league, Bradley has averaged 11.8 points per game and is a career 36.4% 3-point shooter. He spent the first seven years of his career with the Boston Celtics before short stints with the Detroit Pistons, LA Clippers and Memphis Grizzlies.
Bradley averaged 8.6 points and 2.3 rebounds per game for the Lakers last season.