Al Jefferson scored 23 points, Paul Millsap had 18 and the Utah Jazz beat Oklahoma City 109-94 Tuesday night to break the Thunder's four-game winning streak.
Utah's bench outscored Oklahoma City's 49-25, and the Jazz bigs dominated the boards, holding a 16-7 edge on offensive rebounds.
The Thunder also committed 20 turnovers.
The game was scrappy from the start, with Kendrick Perkins and Kevin Durant both called for flagrant fouls, and Perkins whistled for a technical.
The Jazz led by seven entering the fourth but quickly put the game away, opening on a 6-0 run.
The Thunder were already down 17 when Durant bumped a driving Alec Burks out of bounds, then exchanged words with DeMarre Carroll after drawing the flagrant.
Durant finished with 33 points on 11-of-16 shooting, and Russell Westbrook added 22 points.