Goran Dragic is out of Tuesday's game due to back spasms.

It is Dragic's third injury absence of the season. He missed three games in early November with a sprained left ankle, then two later that month with a strained left elbow.

"There's not a breaking point," Erik Spoelstra said. "You're capable of handling whatever you need to handle. In this league, anything that comes at you is an opportunity to grow as a team."

Josh Richardson will start at point guard with Dragic out.