Jaylen Brown scored four of his 40 points in the final minute, and the Boston Celtics blew most of a 27-point lead in the fourth quarter before holding on for their fifth straight victory, 121-113 over the Los Angeles Lakers on Thursday night. Brown made 13 of his first 14 shots and hit three 3-pointers while falling two points shy of his career high for the Celtics, who have won eight of 11 despite an embarrassing finish at Staples Center. Boston led 113-86 with seven minutes to play, shortly after coach Brad Stevens pulled his starters.