Augustin, according to multiple reports. The Bucks will be the 25-year-old's fourth different team of his career. He had signed with the Knicks as a free agent in June 2019 and averaged 10.1 points and 5.1 rebounds in 66 games in his lone season in NY.
The 22nd-overall pick in 2015 signed a one-year deal with the Knicks in July 2019 that included a club option, which was declined by the team earlier this week.
Augustin, 33, will be joining his ninth team in 13 National Basketball Association seasons. He 5.4 points and 3.3 rebounds in 18.5 minutes in 58 games in his third season in Denver, while shooting 46.1% from the field and 32.6% from 3-point range.
Forbes averaged 11.2 points, 2.0 rebounds and 1.7 assists in 63 games last season for the Spurs, making 62 starts.
Augustin, who turned 33 in November, can provide a veteran scoring presence off the bench.
The Bucks also reached agreement with free-agent forward Torrey Craig, agents Dave Spahn and Austin Brown told Wojnarowski.