Joel Embiid remains doubtful for Game 2 against the Boston Celtics due to a sprained knee, according to Doc Rivers.

"There's no change in his status. But he's working out today ... the fact that he is doing that is a step forward, for sure," said Rivers on Tuesday.

Embiid's status for Game 2 will not be affected by the Sixers' Game 1 win, according to Rivers.

"It's just health-based. If he can play, he plays. If he can't, he can't. And if it's 50-50, we would probably err on other side [and not have him play], because we've done that all year," said Rivers.

Rivers added that he will also monitor Embiid's conditioning when the center eventually returns.

"When he does come back -- if that's Game 2, Game 3, whenever he comes back -- he's going to be tired, and we're going to have to monitor that as well. That'll be a new thing to throw in."