Jimmy Butler scored 35 points, Bam Adebayo had 20 points and 8 rebounds and the No. 8-seeded Miami Heat rallied to upset the No. 2-seeded Boston Celtics 123-116 in Game 1 of the Eastern Conference finals on Wednesday at TD Garden in Boston. Game 2 is Friday. Jayson Tatum scored 30 points for the Celtics, while Jaylen Brown had 22 points.