WALTHAM — Instead of playing a game Tuesday night, the Celtics  held practice and reacted to Monday’s Boston Marathon tragedy.
Among those most affected was Jeff Green . The Celtics player, like his coach, live in Boston and very close to the epicenter of Monday’s two explosions on Boylston Street near the finish line.
Green said before Tuesday’s practice that he understood completely the NBA’s decision to cancel Tuesday’s home game against the Pacers at the Garden.
“Everybody has got to be safe,” Green said. “I think it was right to cancel the game out of respect for the families affected.”
Celtics coach Doc Rivers  also lives in the Back Bay. He was headed into Boston after Monday’s practice in Waltham to watch the Marathon. He said
“I always go down after practice and watch [the Boston Marathon]. I was on my way,” Rivers said. “I had gotten out of the [Prudential] tunnel when the bomb exploded.
“I thought the spirit of Boston was incredible last night. If you’re part of the city, this country, it’s going to be on your mind. This city has an amazing amount spirit. You’re angry, too, when you think about it because you love your city. That bothers you.”
The game against the Pacers was canceled and will not be rescheduled. The Celtics will finish their 81-game schedule on Wednesday night in Toronto and then open the first round of the playoffs this weekend in New York’s Madison Square Garden against the Knicks.