The 76ers finished the regular season on a 16-game winning streak despite his absence.
Embiid cleared concussion protocol on Sunday, Brown said, though the team does not have a specific date for return.
The Sixers own a 1-0 lead in the best-of-7 series with the Heat.
Embiid will shoot for a Game 3 return.
"It's about what's best for Joel's health", Brown said.
Syria says Western attack 'doomed to fail'
It said three civilians were wounded in the Homs attacks but did not give a toll for Damascus or mention any combatant casualties. Rafah al-Okda, a 21-year-old nursing student at Damascus University, said she had not changed her routine following the threats.
The Heat will need to regroup and in a hurry with Game 2 around the corner on Monday. Miami will not be able to win many games if they allow their opponent to shoot that many three-pointers and make the at that high of a percentage. Philadelphia looks laser-focused in postseason play one game in.
Between Game 2 and Game 3, Embiid may participate in on-court work with members of the coaching staff or players who are not in the regular rotation. "We gonna see how it feels in the next couple of days". And I feel great.
ESPN reported Embiid and the Sixers are waiting for the mask to be cleared by the National Basketball Association, and Embiid likely will wear facial protection upon his return. "And it's been determined that he shall not play Game 2 for that reason.".
Just about every Heat player save for Olynyk was a fantasy bust in Game 1. Philadelphia outscored Miami by 31 points in the second half of its 130-103 win, using a number of small-ball lineups after halftime.