Dwyane Wade had his knee drained prior to Game 3, according to multiple sources.
Wade has downplayed the extent of his left knee injuries over the past few weeks.
Wade declined to comment on the procedure after Game 4 other than to say, "If I'm in uniform, I ready to play."
Wade said the 48 hours of treatment and time away allowed him to regroup for Sunday's critical game.
"The last two days have been mental," Wade said. "It was great for me just getting away and to get that energy that I needed. I know I was struggling on the offensive end, but I didn't want that to affect my overall game."
Danny Granger expects the altercation between Dwyane Wade and Erik Spoelstra to unify the Heat ahead of Game 4.
"Whatever happened between D. Wade and Spoelstra was highly publicized," Granger said. "Teams can (respond to) that in two ways. They can come together; they can call a meeting to get on the same page. Or it'll be more of a crack. I think they'll take the positive approach. We have to think they're going to come back and be on the same page more than ever."
Wade shot 2-of-13 from the floor in Game 3.
"I guarantee you he won't play that bad next game," Granger said. "He's very capable. He just had an off night. We know he won't play that bad (again)."
Lance Stephenson gave a choke sign at LeBron James after the latter missed a technical foul during the third quarter of Game 3.
"I was wrong and disrespectful to my teammates, the Miami Heat and their organization," Stephenson told NBA.com on Saturday. "I'm sorry that I did that. It was very disrespectful.
"(I) try to talk to other players, but in a good way. Get them off their game a little bit but not being disrespectful. I just got out of hand one time, and I'll never do it again."
James said he hadn't seen tape of the incident.
"Lance Stephenson? You want a quote about Lance Stephenson?" James said. "I'm not even going to give him the time. Knock it off."
Paul George has been key to the Pacers’ 2-1 series lead over Miami because of his ability to defend Dwyane Wade largely without help.
"Paul George is one of the top five most versatile defenders in the NBA," Indiana coach Frank Vogel said. "He's doing a great job on Wade. Wade had an off night (going 2 of 13 in Game 3). When he did get free he didn't knock down shots. We can't give Paul all the credit. Wade's too good of a player to have shooting nights like he had (Thursday), but Paul is just competing, he's growing by the day and we're just happy about what his future looks like."
Wade, who is shooting 31 percent in the series, connected on just 2-of-13 attempts in Game 3.
"I wanted to come out and be aggressive on (Wade) again and force him to make jump shots, and he wasn't making them. I guess that will be my plan for the next game," George said. "We just pressured; we pressured and executed on the offensive end. They tried to take us out of a lot of our stuff, but we just made plays."
Erik Spoelstra mixed up his starting lineup in Game 3 with Chris Bosh unavailable.
Dexter Pittman started at center, while Shane Battier received the call at small forward and that setup LeBron James for a matchup at power forward against David West.
Pittman played just 3.5 minutes before Spoelstra sent in Joel Anthony.
Chris Bosh did not travel with the Heat to Indiana, remaining in South Florida for treatment of his lower-abdominal strain.
Bosh is out indefinitely, but hasn't been formally ruled out of returning against the Pacers.
"He's upbeat as you can be with an injury," LeBron James said after Thursday morning's shootaround. "He's just trying to do all the rehab he can. He can't do much rehabbing right now. He has to rest, but just trying to stay upbeat as much as he can."
"Me, personally, I've always told myself, if I can win three championships, if I can retire with at least three, then I've had an unbelievable career," Wade said.
"If I were to retire right now with one, I've done more than a lot of players before me. But I've always said to myself, if I can get three total, I've done all right for myself."
Wade, 30, was named MVP of the 2006 NBA Finals, when the Heat came back from a 2-0 deficit to win four straight games against the Mavericks.