Rondo sustained a fracture in his right thumb Sunday in Orlando, Fla. The team said he will have surgery this week and is expected to return to basketball activities in six to eight weeks.
Rondo, 34, averaged 7.1 points and 5.0 assists per game this season before the 2019-2020 NBA campaign was suspended in mid-March due to the coronavirus pandemic.
The four-time All-Star had served as a backup point guard to Lakers star LeBron James.
The Lakers are scheduled to resume the season with a game against the rival Los Angeles Clippers at 9 p.m. EDT July 30 in Orlando.
Los Angeles traveled to Orlando Thursday and practiced Saturday and Sunday.