Jaylen Brown scored 23 points off the bench, Daniel Theis added a career-high 22 points and grabbed 10 rebounds, and the Boston Celtics routed the Chicago Bulls 133-77 on Saturday night for their fifth straight win.

Jayson Tatum had 18 points and Terry Rozier added 15 as the Celtics used a 17-0 start and a balanced attack to roll their second straight lopsided win after beating New York 128-100 on Thursday. The Celtics (15-10) have outscored opponents an average of 126.2 to 97.6 during their five-game run.

Boston Celtics forward Daniel Theis dunks the ball against the Chicago Bulls during the second half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Boston Celtics forward Daniel Theis dunks the ball against the Chicago Bulls during the second half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

The 56-point loss was the worst in Bulls’ history, eclipsing a 53-point (127-74) defeat at Minnesota on Nov. 8, 2001.

Shaquille Harrison came off the bench to score a career-high 20 points for the Chicago, which has lost eight of nine. Zach LaVine had 11 for the Bulls (6-21), whose previous worst loss this season was by 39 points (122-83) to Toronto on Nov. 17.

Chicago Bulls forward Chandler Hutchison, right, tries to keep the ball away from Boston Celtics forward Jayson Tatum, left, during the second half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Chicago Bulls forward Chandler Hutchison, right, tries to keep the ball away from Boston Celtics forward Jayson Tatum, left, during the second half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

The Celtics took charge early, racing ahead 17-0 as they shot 8 for 11 from the floor at the start. Boston led 35-17 after one quarter as it shot 60.9 percent, and led 64-43 at the half thanks to 52.4-percent shooting.

For the game, the Celtics outshot Chicago 53.8 percent to 38.3 percent.

Chicago Bulls center Robin Lopez, right, shoots against Boston Celtics forward Daniel Theis, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Chicago Bulls center Robin Lopez, right, shoots against Boston Celtics forward Daniel Theis, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

The scoring in Boston’ first-half outburst was evenly distributed. Morris led with 12 points, while Tatum, Theis and Terry Rozier each had 10.

The Celtics’ biggest lead in the first half was 22 points and Chicago never got closer than 13.

Chicago Bulls guard Zach LaVine, right, drives to the basket against Boston Celtics forward Guerschon Yabusele, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Chicago Bulls guard Zach LaVine, right, drives to the basket against Boston Celtics forward Guerschon Yabusele, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

Chicago missed its first 12 field goal attempts, prompting coach Jim Boylen to pull all five starters 4:45 in. The Bulls didn’t score until Jabari Parker hit a pair of free throws 6:18 in — raising a derisive cheer from the United Center crowd. Chicago didn’t get its first basket until Robin Lopez sank a turnaround hook 36 seconds later.

Chicago Bulls forward Lauri Markkanen, right, defends against Boston Celtics forward Jayson Tatum, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Chicago Bulls forward Lauri Markkanen, right, defends against Boston Celtics forward Jayson Tatum, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

The Celtics kept the pressure on, outscoring Chicago 69-34 in the second half.

The Bulls fell flat after beating Oklahoma City 114-112 on Friday night on Lauri Markkanen’s layup in the closing seconds, giving Boylen his first win as an NBA head coach.

Boston Celtics guard Kyrie Irving, right, battles for the ball with Chicago Bulls forward Wendell Carter Jr. (AP Photo/Kamil Krzaczynski)
Boston Celtics guard Kyrie Irving, right, battles for the ball with Chicago Bulls forward Wendell Carter Jr. (AP Photo/Kamil Krzaczynski)

A longtime NBA assistant, Boylen took over Monday when Fred Hoiberg was fired following a 5-19 start. The Bulls lost at Indiana the following night in Boylen’s debut.

TIP-INS

Boston Celtics guard Kyrie Irving, right, shoots against Chicago Bulls guard Shaquille Harrison, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Boston Celtics guard Kyrie Irving, right, shoots against Chicago Bulls guard Shaquille Harrison, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

Celtics: Forward/center Al Horford missed the game with a sore left knee after recording 19 points and 12 rebounds against New York on Thursday. . Forward/center Aron Baynes (sprained left ankle) also sat out. He limped off the court late in the last two minutes of the first quarter on Thursday versus the Knicks. . Forward Guerschon Yabusele had to be helped off the court midway through the fourth quarter after landing awkwardly.

Bulls: Coach Jim Boylen still isn’t sure when guard Kris Dunn (sprained left MCL) and forward Bobby Portis (sprained right MCL) will return. “Long-term health is what we’re about,” Boylen said. “We expect them back soon, any day, but not today. We’ll re-evaluate tomorrow.” . A longtime NBA assistant, Boylen said he’s very close to Hoiberg and said feelings are still “really raw” following the firing of his former boss. Boylen shook off questions about whether Hoiberg “lost the locker room.” ”I approach the locker room different than Fred,” Boylen said. “It doesn’t mean better, worse or whatever. We’re different people.”

Boston Celtics forward Marcus Morris dunks the ball against the Chicago Bulls during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Boston Celtics forward Marcus Morris dunks the ball against the Chicago Bulls during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

GOT MILK?

Boston Celtics guard Jaylen Brown dunks the ball against the Chicago Bulls during the second half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Boston Celtics guard Jaylen Brown dunks the ball against the Chicago Bulls during the second half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

Boylen said he celebrated his first victory as an NBA head coach on Friday night at home with his family. “We had a bowl of cereal with my kids and watched the ‘Family Feud,'” he said.

UP NEXT

Boston Celtics forward Marcus Morris, center, goes to the basket against Chicago Bulls center Robin Lopez, right, and guard Cameron Payne, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Boston Celtics forward Marcus Morris, center, goes to the basket against Chicago Bulls center Robin Lopez, right, and guard Cameron Payne, left, during the first half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

Celtics: Host New Orleans on Monday.

Bulls: Host Sacramento on Monday.

Boston Celtics guard Jaylen Brown, right, shoots as Chicago Bulls guard Antonio Blakeney, left, defends during the second half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)
Boston Celtics guard Jaylen Brown, right, shoots as Chicago Bulls guard Antonio Blakeney, left, defends during the second half of an NBA basketball game, Saturday, Dec. (AP Photo/Kamil Krzaczynski)

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Source: The Associated Press

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