Boston's center, who has been slowed by injuries this year, struggled with his fellow starters Sunday in a loss at Oklahoma City.

The Celtics acknowledged the talent of the Thunder after the game, praising how they played. Celtics center Kristaps Porzingis didn't shy away from the challenge of playing a team

The Celtics were cruising against the Thunder until they hit a wall in the second half, scoring just 27 points.