The Heat reserves were both receiving treatment for hip and thigh injuries as the team prepared to fly to Indiana for the fifth game of the series yesterday afternoon.
When asked about Andersen, who was injured at the weekend after colliding with teammate Dwyane Wade, coach Erik Spoelstra told ESPN: "He's the human bruise, so he has a lot of different things going on all over his body, and he's been able to play through all of that.
"He's a tough guy. We all know that. He plays through pain. But you have to understand the difference between pain and injury."
Andersen has been averaging 6.7 points per game off the bench against the Pacers, while Allen has averaged 10.