Thunder 93, Grizzlies 91: Kevin Durant had 35 points, 15 rebounds and six assists and nailed the go-ahead shot with 11.1 seconds left as top-seeded Oklahoma City rallied to upend visiting Memphis in the opening game of the Western Conference semifinals.

Kevin Martin added 25 points for the Thunder, who trailed by nine entering the fourth quarter. The fifth-seeded Grizzlies led 90-87 with 1:07 to play but committed two costly turnovers in the final 18 seconds and were unable to get a last-second shot off before the buzzer after Quincy Pondexter intentionally missed a free throw with 1.6 seconds left.

Marc Gasol had 20 points and 10 rebounds and Zach Randolph had 18 points and 10 boards for Memphis, which hurt itself by going 14-of-24 from the free-throw line.

The Thunder caught the Grizzlies at 84 on Durant’s short jumper with 3:46 remaining but Memphis rebounded to take a 90-87 lead on Gasol’s basket with 1:07 left. Memphis still had a one-point lead when Derek Fisher made a steal with 17.9 seconds left to set up Durant’s go-ahead hoop, and the Grizzlies turned the ball over again on Gasol’s bad pass with 3.5 seconds remaining.

Oklahoma City’s Reggie Jackson hit two free throws with 2.9 seconds left but fouled Pondexter while he was attempting a tying 3-pointer. Pondexter missed the first, made the second and his intentional miss was eventually corralled by Gasol but the contest ended prior to Gasol’s desperate shot.

GAME NOTEBOOK: The teams combined to go 12-of-46 from the floor in an opening quarter that finished with Memphis leading 16-14. The Thunder led 47-46 at halftime. … Oklahoma City F Serge Ibaka was just 1-of-10 from the field while scoring five points. … Pondexter contributed 13 points, including a 35-foot buzzer-beater to end the third quarter.