Gordon Hayward and Marcus Morris took care of some housecleaning Sunday in Indianapolis.

They dusted off their three-point shooting touch in time to help the Boston Celtics complete a clean sweep of the Indiana Pacers.

Hayward, who played college ball nearby at Butler, scored 20 points, Morris added 18 and the duo combined for five threes over the final five minutes to give visiting Boston a 110-106 victory and its first 4-0 series victory in eight years.

"I knew there was going to be a spark off the bench [on Sunday] and that person was Gordon Hayward," All-Star guard Kyrie Irving said. "This is his city. I'm glad he had a chance to put on a performance like that in a closeout game."

Looming next for the Celtics are the top-seeded Milwaukee Bucks, who can eliminate the Detroit Pistons with a win on Monday night.

Just how rare is a sweep for a franchise with a league-record 17 titles?

Since 1986-87, the Celtics had done it just once — in the first round against the New York Knicks. And between the Celtics' title-clinching sweep over the Minneapolis Lakers in 1958-59 and their perfect run through the 1985-86 Eastern Conference finals against Milwaukee, the Celtics achieved it just twice — in 1979 against Houston and in 1980 against Chicago.

Darren Collison had 19 points, six rebounds and five assists for Indiana, which has lost seven straight to the Celtics.

Golden State 113, L.A. Clippers 105: Kevin Durant scored 33 points, Klay Thompson added 32 and the visiting Warriors took a commanding 3-1 series lead with a victory over the Clippers.

"We came in with that mind-set to put our foot on the throttle and not let go," Thompson said. "We let go in Game 2 and we won't do that the rest of the playoffs. I really believe that."

After a quiet 12 points in Game 3, Thompson broke out for 27 points by halftime.

Rookie Shai Gilgeous-Alexander led the Clippers with a career-high 25 points. Super subs Lou Williams and Montrezl Harrell were held to 12 and 10 points, respectively. They combined for only eight points in the second half.

Portland 111, Oklahoma City 98: Damian Lillard scored 15 of his 24 points in the third quarter and the visiting Trail Blazers held Russell Westbrook without a basket in the second half to take a 3-1 series lead.

C.J. McCollum scored 27 points, Al-Farouq Aminu had 19 points and nine rebounds and Maurice Harkless added 15 points and 10 rebounds for the Trail Blazers. Portland can close out the series Tuesday at home.

Paul George had 32 points and 10 rebounds for Oklahoma City. Dennis Schroder added 17 points.

Westbrook scored 14 points on 5-for-21 shooting. He missed his final 10 shots.

Toronto 107, Orlando 85: Kawhi Leonard scored 34 points and the Raptors beat the host Magic to take a 3-1 series lead.

Pascal Siakam and Norman Powell each scored 16 for the Raptors, who can advance with a home win in Game 5 on Tuesday. Toronto has now won three consecutive postseason games, only the third time that's happened in franchise history.

Aaron Gordon scored 25 for the Magic, making his first seven shots of the second half.

Notes

• For the first time in NBA history, there were eight road playoff wins in a two-day span over the weekend. Road teams went 4-0 on Saturday and 4-0 on Sunday. Through 30 games of this year's playoffs, road teams are 16-14.

• The NBA fined Brooklyn's Jared Dudley $25,000 and Philadelphia's Jimmy Butler $15,000 for their role in an altercation on Saturday.

• Brooklyn General Manager Sean Marks was suspended one game without pay and fined $25,000 by the NBA for entering the referees' locker room after the Nets' loss to the 76ers on Saturday.

• San Antonio Spurs guard DeMar DeRozan was fined $25,000 by the NBA for heaving a ball past an official and into the stands of a playoff game against the Denver Nuggets on Saturday night.