OKLAHOMA CITY (AP) — A pair of 73-second stretches turned an ordinary game by Russell Westbrook’s standards into another MVP-caliber performance.

Westbrook scored 36 points to help the Oklahoma City Thunder beat Boston 122-118 on Wednesday night, snapping the Celtics’ five-game winning streak.

Westbrook’s first outburst came in the third quarter. He scored eight points from the 5:22 mark to the 4:09 mark, spearheading a 13-0 run that gave Oklahoma City a 79-70 lead.

“The first two quarters, they imposed their will on us,” Westbrook said. “It was aggressive. We were the ones getting pushed around. Coming out of halftime, I was just trying to change the pace, bring energy, on both sides of the basketball.”

The second big stretch for Westbrook came in the last 73 seconds of the game.

He made his only field goal of the fourth quarter, a long 2-pointer, to push Oklahoma City’s lead to nine with 1:13 to play. The Thunder held on as Westbrook went 8 of 8 on free throws in the final minute, despite leaving the game for 22 seconds because he took a hit to the face. He had a small bandage under his right eye during his postgame interview session.

Westbrook, the NBA’s leading scorer, also had 10 assists, five rebounds and five steals.

Marcus Smart, who played college ball at Oklahoma State, made seven 3s and led Boston with a career-high 25 points. Kelly Olynyk and Brandon Bass each added 20 points for Boston.