The series started with Jimmy Butler staking claim to the foul line and the Miami Heat staking claim to the early lead in these Eastern Conference finals against the Boston Celtics. With Butler 17 of 18 on free throws in Game 1, the Heat set the tone. The pace was theirs, with ample time to then set their defense. By Game 2, the footing was more equal, only a late flurry of garbage-time free throws by Victor Oladipo somewhat evening the ledger in that Heat loss. Since then, since Butler has been limited by a balky knee? Game 3: Celtics 30 free throws, Heat 14. Game 4: Celtics 38, Heat 14. For his part, Butler took the high road in the wake of Monday night’s 102-82 Game 4 loss at TD Garden. “I think we just got to be more physical,” he said, with the Heat turning their attention to Wednesday’s 8:30 p.m.