Clippers guard James Harden argues a call with referee Jacyn Goble during the first half of their game against the Boston Celtics on Monday night in Boston. (AP Photo/Charles Krupa) Boston Celtics center Kristaps Porzingis (8) tries to block a shot by Clippers center Ivica Zubac (40) during the first half of an NBA basketball game, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) Clippers guard Kevin Porter Jr., center, tries to drive between Boston Celtics guard Derrick White (9) and center Neemias Queta (88) during the first half of an NBA basketball game, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) Boston Celtics center Neemias Queta (88) blocks a shot by Clippers guard James Harden (1) during the first half of an NBA basketball game, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) Clippers center Ivica Zubac, left, posts up against the Boston Celtics’ Kristaps Porzingis during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) The Boston Celtics’ Derrick White, left, grabs a rebounds over Clippers guard Terance Mann during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Boston Celtics star Jayson Tatum (0) attempts a layup in front of Clippers star James Harden, left, and Kris Dunn, right, during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Clippers head coach Tyronn Lue calls to his players during the first half of an NBA basketball game against the Boston Celtics, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) Clippers center Ivica Zubac attempts a shot as the Boston Celtics’ Neemias Queta defends during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Boston Celtics star Jayson Tatum handles the ball during the first half of their game against the Clippers on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Boston Celtics star Jayson Tatum drives to the basket as Clippers forward Derrick Jones Jr. defends during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Clippers center Ivica Zubac looks to pass as the Boston Celtics’ Kristaps Porzingis defends during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) The Boston Celtics’ Payton Pritchard takes a 3-point shot in front of Clippers guard Terance Mann during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) The Boston Celtics’ Kristaps Porzingis blocks a shot from Clippers guard Kris Dunn during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) The Boston Celtics’ Kristaps Porzingis takes a 3-point shot in front of Clippers guard Kris Dunn during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) The Boston Celtics’ Payton Pritchard gets to the basket for a layup in front of the Clippers’ Kevin Porter Jr. during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Clippers guard James Harden takes a shot over Boston Celtics forward Sam Hauser during the first half of an NBA basketball game, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) The Boston Celtics’ Kristaps Porzingis attempts a 3-point shot during the first half of their game against the Clippers on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) The Boston Celtics’ Kristaps Porzingis reacts after making a 3-point shot during the first half of their game against the Clippers on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Boston Celtics guard Payton Pritchard (11) drives to the basket against Clippers guard Kris Dunn (8) during the second half of an NBA basketball game, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) Clippers guard Terance Mann reacts after making a 3-point shot during the second half of their game against the Boston Celtics on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Boston Celtics center Kristaps Porzingis (8) dunks during the second half of an NBA basketball game against the Clippers, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) The Clippers’ Jordan Miller drives to the basket as the Boston Celtics’ Derrick White defends during the second half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Boston Celtics forward Jayson Tatum (0) drives to the basket against the Clippers during the second half of an NBA basketball game, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) Clippers star James Harden takes a 3-point shot during the second half of their game against the Boston Celtics on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Boston Celtics head coach Joe Mazzulla snaps his fingers while calling to his players during the first half of a game against the Clippers, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) Clippers guard James Harden drives to the basket as the Boston Celtics’ Jrue Holiday defends during the second half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Boston Celtics forward Jayson Tatum, center, grabs the ball while pressured by the Clippers’ Amir Coffey, left, and Kris Dunn, right, during the second half of an NBA basketball game, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) Boston Celtics forward Jayson Tatum, center, hangs onto the ball while pressured by the Clippers’ Amir Coffey, left, and Kris Dunn, right, during the second half of an NBA basketball game, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) Clippers forward Derrick Jones Jr. dunks during the second half of their game against the Boston Celtics on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Clippers guard James Harden drives to the basket as the Boston Celtics’ Jrue Holiday defends during the second half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Clippers guard James Harden, right, passes the ball behind the back of Boston Celtics center Kristaps Porzingis to Ivica Zubac, left, during the first half on Monday night in Boston. (AP Photo/Charles Krupa) The Boston Celtics’ Neemias Queta reacts after scoring a basket during the second half of their game against the Clippers on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Clippers star James Harden handles the ball as the Boston Celtics’ Jrue Holiday defends during the second half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Boston Celtics center Kristaps Porzingis (8) prepares to take a 3-point shot during the second half of a game against the Clippers, Monday, Nov. 25, 2024, in Boston. (AP Photo/Charles Krupa) The Boston Celtics’ Kristaps Porzingis, left, and Clippers center Ivica Zubac jump for the ball during the first half on Monday night in Boston. (Photo by Brian Fluharty/Getty Images) Show Caption1 of 36Clippers guard James Harden argues a call with referee Jacyn Goble during the first half of their game against the Boston Celtics on Monday night in Boston. (AP Photo/Charles Krupa) Expand By KYLE HIGHTOWER AP Sports Writer BOSTON — The Clippers’ five-game winning streak came to an end against the defending NBA champions. Jayson Tatum scored 20 points and the Boston Celtics made 22 3-pointers in a 126-94 win over the Clippers on Monday night. Payton Pritchard added with 20 points for Boston (15-3), which extended its season-high win streak to six games. Kristaps Porzingis finished with 16 points on 6-of-12 shooting, to go along with six rebounds and two blocked shots in his season debut following offseason ankle surgery. He started and played 23 minutes with Al Horford (illness) and Luke Kornet (hamstring) out. Ivica Zubac paced the Clippers (11-8) with 23 points and 10 rebounds, and James Harden flirted with a triple-double with 19 points, nine assists and eight rebounds. The Celtics were just 4 for 17 from 3-point range in the first quarter, but they opened the second by connecting on 10 of their first 13 attempts from behind the arc. Boston finished the second quarter 12 for 17 from deep, tying the NBA record for 3-point field goals in a quarter. That helped stretch what had been a seven-point lead after the opening 12 minutes to 19 points. Related Articles Clippers | James Harden scores 23 points against his former team to lift Clippers over 76ers Clippers | Clippers’ Jordan Miller stays ready when his number is called Clippers | Clippers make it 7 in a row at home, top Kings in NBA Cup play Clippers | Clippers’ Amir Coffey finding himself in spotlight more often Clippers | Clippers win defensive tussle with Magic The Clippers made the game a little more interesting in the third quarter, using a 22-8 run to trim Boston’s lead to 14, but the Celtics made their next three 3-point shots to help push the margin back above 20. The Clippers scored 58 points in the paint but made noticeable adjustments when the 7-foot-2 Porzingis was on the floor. UP NEXT The Clippers continue their four-game trip on Wednesday at 4 p.m. PT against the Washington Wizards.