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

One player whose injury history is always talked about is center Kristaps Porzingis. Porzingis made his return to the Celtics lineup a few weeks ago but his presence on the court

Mazzulla said before the game that Holiday and Porzingis are getting better every day, but wouldn’t provide specific details on their timetable or the seriousness of their shoulder and ankle