It is believed to be a one-year, veterans minimum arrangement.
Mbah a Moute, 30, played the past two seasons with the LA Clippers as the team's starting small forward. He declined a $2.3 million player option for the 2017-18 season to hit free agency this summer. He shot a career high of 39 percent from the beyond the arc last season.
For Mbah a Moute's career, he averages 6.3 points and 4.2 rebounds.
He is still viewed as a top-flight perimeter and low-post defender as he'll enter his 10th season in the league.
The Clippers were interested in re-signing Mbah a Moute.