Giannis Antetokounmpo and Mike Budenholzer stressed the need to move on quickly after a contentious ending to the Milwaukee Bucks' defeat to the Miami Heat in Game 2 of the Eastern Conference semi-finals.

A breathless finish had seen Khris Middleton sink three free throws after Goran Dragic was judged to have stepped in his landing area to tie up a game in which 51 personal fouls were whistled for in Orlando.

But more drama followed when it was ruled Antetokounmpo fouled Jimmy Butler at the buzzer, with Bucks head coach Budenholzer having already used up his challenge.

Butler kept his nerve to sink the two free throws and seal a 116-114 win that sees the Heat move 2-0 in front, while it was just the third time in playoff history a game ended on free throws after time expired.

"I tried to make it tough for Jimmy," Antetokounmpo, who finished with a game-high 29 points, reflected on the decision. "The refs said there was contact there. Maybe there was, I've got to watch the play. 

"It is what it is. I tried to contest the shot, but they said there was contact there, so I've got to watch [the] play." 

The Bucks now face an uphill battle as the previous 11 teams to trail 2-0 in a best-of-seven series having recorded the best regular-season record went on to be eliminated, and Antetokounmpo issued a rallying cry to his team-mates.

"It's about us. It's always going to be about us. That's why we practice. That's why we go through our game plan. That's why we've got to come out and play harder," added Antetokounmpo, whose team also lost twice to the Heat in the regular season. 

"That's why we've got to make more shots. It's always going to be about us. It's not about what the other team is going to do. 

"It might be the Miami Heat now, next round might be a different team, next year might be a different team. It's always going to be about us.

"How can we get better? How can we not repeat the same mistakes? How can we not down the stretch make turnovers? How can we create easier shots?

"It's always going to be about us. It's never going to be about the other team that we're playing."

Budenholzer was not happy with the decisive call but followed a similar line to his star man.

"I would say we're disappointed with the judgment, with the decision, the timing," he said.

"It's a tough job. I have a lot of respect for the officials and the crew tonight. It's not an easy job, and of course we have our way of seeing things and we're going to disagree, but we need to shift our attention to Game 3 and get prepared for that. Understand that that's the most important thing right now."

Conversely, Butler had no doubt the right decision was made, saying: "It was an iso [isolated one-v-one], Goran [Dragic] made a hell of a pass on the inbound, then just wait for the clock to go out," Butler said. 

"A step-back jumper and I got fouled, [he] pushed me in the back. Can't deny that, and then I knew I had to make one out of two so I ended up, I think I made both of them and we win."