Giannis Antetokounmpo believes NBA history is within the reach of the Milwaukee Bucks despite them falling 3-0 behind to the Miami Heat in the NBA playoffs.

The Heat moved within a game of progressing to the Eastern Conference finals with a 115-100 win over the top-seeded Bucks on Friday.

Milwaukee led by 12 points going into the final quarter but were incredibly outscored 40-13 in the final 12 minutes of Game 3 of the semifinals.

The Bucks will attempt to keep their season alive with victory in Game 4 on Sunday.

And reigning MVP Antetokounmpo, who tweaked his ankle in the first quarter but still had 21 points with 16 rebounds and nine assists, knows Milwaukee cannot afford another fourth-quarter slump.

"We played well for three quarters, we just got to be able to do that for four quarters," said Antetokounmpo.

"You've got to play hard for 48 minutes. We've got to play harder, we've got to play better."

No NBA team has overturned a 3-0 series deficit but Antetokounmpo added: "Mentally, we're in a good place. If there's a team that can beat a team four straight it can be us.

"We've just got to believe in ourselves. We can do it. We've done things before where nobody believed in us."