MILWAUKEE — Khris Middleton broke a tie with a jumper with 0.5 seconds left in overtime and had 27 points to help the Milwaukee Bucks beat the Miami Heat 109-107 Saturday in Game 1 of the first-round playoff series.

Middleton was closely guarded by Duncan Robinson on the 19-footer.

Miami’s Goran Dragic had tied it with a corner 3-pointer with 20.6 seconds left. After Middleton’s shot, Jrue Holiday blocked a 3-point attempt from Jimmy Butler as the buzzer sounded.

Game 2 is Monday night in Milwaukee. Miami beat Milwaukee 4-1 in the second round last year and went on to reach the NBA finals.

Butler forced overtime by making a buzzer-beating driving layup past Giannis Antetokounmpo, whose free-throw woes prevented the Bucks from putting the game away earlier.

Antetokounmpo had 26 points, 18 rebounds and five assists, but was just 6 of 13 on free throws. Over the last 1:06 of regulation, Antetokounmpo was 2 of 5 from the line and had a 10-second violation that prevented him from getting another free-throw attempt.

Holiday had 20 points and 11 rebounds for the Bucks, who won despite shooting 5 of 31 from 3-point range. They’d never made below seven 3-pointers in a game during the regular season.

Dragic scored 25 points, Robinson had 24 and Butler added 17 for the Heat. Butler also had 10 rebounds and eight assists.

The Bucks took a 98-97 with 34.3 seconds left in regulation when Antetokounmpo made the second of two free throws after getting fouled on a shot attempt. Antetokounmpo knocked the ball loose from Butler to force a jump ball, got the ball when Brook Lopez won the tip and got fouled again with nine seconds left.

This time, Antetokounmpo made the first but missed the second. Trevor Ariza got the rebound and Miami called a timeout with eight seconds remaining.

Dragic inbounded the ball to Butler, who took his time before driving to the basket and making a layup that rolled in as the buzzer sounded.

MAVERICKS 113, CLIPPERS 102: Luka Doncic scored 31 points and Dallas outshot the NBA’s leading team from 3-point range, winning at Los Angeles in Game 1 of the first-round playoff series.

Tim Hardaway Jr. added 21 points and Dorian Finney-Smith had 18 for the Mavs, who led most of the game. Doncic and Hardaway Jr. made five 3-pointers each, and Finney-Smith had four to help Dallas shoot 47% from long range.

Kawhi Leonard had 26 points and 10 rebounds for the Clippers, and Paul George added 23 points. But they were a combined 3 of 14 on 3-pointers and the Clippers shot 31% after leading the NBA at 41% during the regular season. Marcus Morris missed all six of his 3-point attempts.

NOTES

VIRUS RULES: Just in time for the playoffs, the NBA told its head coaches Saturday they may work without masks during games if they have been fully vaccinated.

Assistant coaches and players are still required to wear masks in the bench area. Head coaches – if vaccinated – may choose to go without masks after pre-game introductions through halftime, then again after halftime until the game concludes.

The memo, sent just a few hours before the postseason opener between Miami and Milwaukee and obtained by The Associated Press, also said that head coaches will have to wear masks during halftime, warmups and the shootaround before the start of the third quarter, and postgame. If opposing coaches choose to meet briefly on the court after a game, masks are encouraged.