6:00pm: The signing is official, the team announced (via Twitter).
The 23-year-old center began this season on a two-way contract with the Clippers. He appeared in 34 games, averaging 4.6 points and 4.1 rebounds in 8.5 minutes per night, before being waived on February 17.
New York will be the sixth team for Brown, who began his NBA career with the Trail Blazers in 2019 after going undrafted out of UCLA. He also had short stays with the Thunder, Mavericks and Cavaliers.