Brown was waived by the Knicks on Thursday.
Brown signed an Exhibit 10 contract with the Knicks on Wednesday.
Brown registered nine points (3-6 FG, 3-6 FT), four rebounds and one steal in 14 minutes during Thursday's 93-89 Summer League win over the Cavaliers.
Brown will start at center in Sunday's regular-season finale against the Kings.
The Trail Blazers have recalled Brown on Saturday from the G League's Rip City Remix.
Brown (wrist) tallied seven points (3-3 FG, 1-3 FT) and one rebound in nine minutes Friday in the Trail Blazers' 122-92 win over the Grizzlies.
Brown (wrist) is available for Friday's game against the Grizzlies.
Brown (wrist) is questionable for Friday's game against the Grizzlies.
Brown (wrist) won't play in Friday's game versus the Nuggets.
The Trail Blazers announced Monday that Brown will undergo surgery this week to address a non-displaced fracture of the scaphoid bone in his left wrist. A timeline for his return will be established once surgery is performed.