Lamar Odom's highly anticipated basketball return has come to a screeching halt -- the ex-NBA superstar has been kicked out of the BIG3 league ... and our sources tell us it's because he simply wasn't ready to play.
Ice Cube's organization announced the move on Wednesday ... saying LO -- as well as Baron Davis, Jermaine O'Neal and Bonzi Wells -- would be deactivated for the remainder of the 2019 season.
TMZ Sports has learned .