Photo: David Richard-USA TODAY Sports

Jimmy Butler scored 41 points (17 alone in the third) and the Miami Heat beat the Marcus Smart and Al Horford-less Boston Celtics 118-107 in Game 1 of the Eastern Conference finals on Tuesday night. Jayson Tatum scored 29 points, Jaylen Brown added 24 for Boston. Game 2 is on Thursday.

After a heartbreaking loss to Miami, the Celtics head coach Ime Udoka shared his thoughts on Boston’s mistakes: “Nothing that we can’t clean up. We been doing it, for the most part, all season … It wasn’t just young guys, it was Jayson (Tatum) and some of our veterans making the same mistakes.”