Scenes: Celtics fall to Thunder, 91-79

Celtics forward Paul Pierce walked off the court in the second half of the Celtics’ 91-79 loss to the Thunder in Oklahoma City. The Celtics were far from their best in the game, commiting 18 turnovers and shooting 38 percent from the field in the loss.

Paul Pierce took a shot in front of Oklahoma City Thunder forward Serge Ibaka (9) in the fourth quarter. Pierce led the Celtics with 20 points. He was one of just three Celtics in double-figures.

Kevin Durant led the Thunder with 23 points. He was just 6 of 16 from the field but made all 11 free throws he attempted in the game.

Celtics center Kevin Garnett (right) shot against Thunder forward Nick Collison in the second half. Garnett struggled mightily in the game, making just 5 of 19 shots from the field.

Celtics guard Avery Bradley (L) got tangled up with Oklahoma City Thunder guard Russell Westbrook (R) in the second half. Bradley played 34 minutes and finished with 12 points.

Sunday’s game was the first game in Oklahoma City for Jeff Green (right), who was traded from the Thunder a couple of seasons ago.

Green was 2 for 11 from the field but had this highlight dunk vs. the Thunder.

Celtics head coach Doc Rivers could not have been happy with his team’s 38 percent shooting or 18 turnovers.

Garnett hugged former teammate and Oklahoma City center Kendrick Perkins after the game. The two remain friends.

Nothing came easy for Paul Pierce against Thunder guard Thabo Sefolosha and company.

The Celtics surrounded Kevin Durant, and forced him into a tough shooting day, but it was not enough to turn the score in the visiting team’s favor.