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Sullinger went 4 or 4 from the line in the final 30 seconds to seal it after missing a pair.

“I knew I was getting mentally cussed out by my father,” he said. “We preach free throws in my family. My father was my high school coach.”

Boston could have starting point guard Rondo back in action as soon as Friday’s game against the Los Angeles Lakers. He went through a workout on Wednesday and was dressed in warmups, sitting on the bench after going through drills just before tip-off. He’s been sidelined since tearing his anterior cruciate ligament in his right knee last Jan. 25.

Boston led by four at halftime and pushed it to 53-44 on Sullinger’s one-handed flip in the lane five minutes into the third quarter and used a 18-5 run late to open a 71-53 advantage on Sullinger’s putback with 25 seconds left in the quarter. Sullinger’s turnaround, 13-footer gave the Celtics a 73-56 after three.

The Celtics won for just the second time in 14 games on a day they shook up their roster a bit more. Earlier Wednesday, Boston sent guards Jordan Crawford and MarShon Brooks to Golden State in a three-team trade, getting back center Joel Anthony from Miami, a conditional future Philadelphia first-round draft pick, the Heat’s 2016 second-round pick and cash.

Last week, they were also part of a three-team trade, shipping guard Courtney Lee to Memphis and getting guard Jerryd Bayless in return.

The fans were chanting “Rondo! Rondo!” with 2 1/2 minutes left.

NOTES: Celtics reserve guard Keith Bogans has been excused from the team for unspecified personal reasons. “I don’t want to get into specifics. He’s excused from the team right now,” Stevens said before the game. “I personally like Keith. That’s where I’ll leave it.” Asked if he expected home to return Stevens said: “Undecided. Unknown.” … The Raptors beat the Celtics at home on opening night in the only other meeting this season. They play again March 26 and 28, the first date in Boston. … Toronto fell to 10-3 when it hits 10 or more 3s after hitting 11. … Bradley bruised his right hand early in the game, went to the locker room, but returned to the floor in the second quarter. … Raptors forward Amir Johnson tweaked his ankle in the third, had it taped and returned.