Lue gave an update Tuesday before the team flew to the Bay Area for Game 1 on Thursday night. The Cavs are playing the Golden State Warriors in the Finals for the fourth straight year.
Love missed Game 7 of the Eastern Conference finals at Boston after banging heads with Celtics rookie Jayson Tatum in the previous game. Jeff Green started for Love in Game 7 and finished with 19 points with eight rebounds in Cleveland's 87-79 victory.
Love has played center and forward this season and is averaging 13.9 points and 10.0 rebounds this postseason.
He missed a game in the 2016 Finals because of a concussion and also was out after a concussion in March. Love also sat out the 2015 Finals with a separated shoulder.
The Associated Press contributed to this report.