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The Boston Celtics walked into Wednesday night at TD Garden with something to prove. The Western Conference leaders, the Oklahoma City Thunder arrived in Boston riding a 12-game winning streak. The matchup carried plenty of anticipation before tip-off.
It delivered on every bit of it. OKC jumped out early, building a 13-point lead behind crisp execution and the kind of controlled offensive rhythm that has made the Thunder the class of the West all season. Boston looked sluggish and out of sync.
Then the Celtics flipped the script entirely.
SGA’s Admission After the Final Buzzer
Boston closed it out 119-109, snapping Oklahoma City’s 12-game winning streak, and afterwards Shai Gilgeous-Alexander didn’t look for excuses.
“Every time you play a Boston Celtics, you get a playoff feel,” SGA said. “They’re super well-coached. They have really good players. It’s a game that you see where you really are and they test you. We got a test tonight; we didn’t pass it.”
For a player who has been as dominant as anyone in the league this season, that kind of candor stands out. SGA finished with 33 points on 10-of-12 shooting and was individually brilliant throughout. The issue wasn’t him. It was what Boston did to everything around him.
He also acknowledged that Oklahoma City’s fast start painted a misleading picture. The Thunder’s early lead was built largely on cold Celtics shooting that was never going to hold. Once Boston corrected, the deficit dissolved quickly and the Thunder had no answer for what followed.
Brown and Tatum Deliver for Boston
Jaylen Brown led the Celtics with 31 points, converting 12 of 14 free throw attempts as he attacked the rim relentlessly in the second half. MVP chants filled the Garden late in the fourth after he drew a foul on Gilgeous-Alexander himself and finished the and-one. It was Brown at his best, aggressive, physical, and rising when the moment demanded it.
Jayson Tatum looked more comfortable, finishing with 19 points, 12 rebounds, and seven assists, serving as the steadying force Boston needed most. He controlled the tempo in the second quarter almost single-handedly, turning a double-digit deficit into a one-possession game before the half.
Six Celtics finished in double figures, with Neemias Queta adding 13 points, five rebounds, and two blocks off the bench. Baylor Scheierman continued to impress, adding 11 points on the night for a team high plus 11.
Boston connected on 18 of 41 three-point attempts and outscored Oklahoma City 39-30 in the third quarter to seize control for good.
GettyJaylen Brown #7 of the Boston Celtics reacts to a foul called against him during the second half of the game against the Oklahoma City Thunder at TD Garden on March 25, 2026 in Boston, Massachusetts.
The Celtics Send a Message
SGA’s postgame comments reflected something genuine about what Boston represents as an opponent.
Joe Mazzulla’s fingerprints were all over it. He was asked postgame on how the Celtics tried to contain Shai.
“The first challenge is keeping him off the free throw line… Then you take a look at last game, the second to last possession… We make him pass it,” Mazzulla said. “We don’t get the rebound… The most important thing, is making sure we’re ready to execute with whatever is needed, depending upon how the game is going.”
The defensive adjustments were deliberate and effective. Gilgeous-Alexander still found his spots, but Boston made him work harder for everything as the game wore on, and the supporting cast around him went quiet when it mattered most.
The Thunder had won 12 straight. They are built for exactly this kind of game. They still couldn’t hold the lead.
Final Word for the Celtics
SGA said the Celtics check every box. Wednesday night backed that up completely.
Boston was down 13, out of rhythm, and staring at a team that hadn’t lost in over three weeks. They didn’t flinch. Brown attacked. Tatum steadied. The depth delivered. The Thunder will be fine. SGA’s honesty after the loss reflects how seriously Oklahoma City takes these moments. They’ll learn from it and move on.
But the Celtics just reminded the rest of the league who they are. The kind of reminder that doesn’t need much explaining.
SGA said it best.
Keith Watkins Keith Watkins is a sports journalist covering the NBA for Heavy.com, with a focus on the Golden State Warriors, Boston Celtics, and Los Angeles Lakers. He previously wrote for FanSided, NBA Analysis Network, and Last Word On Sports. Keith is based in Bangkok, Thailand. More about Keith Watkins
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